142622243244 has 144 divisors (see below), whose sum is σ = 401115536640. Its totient is φ = 42431938560.

The previous prime is 142622243243. The next prime is 142622243273. The reversal of 142622243244 is 442342226241.

It is a happy number.

142622243244 is a `hidden beast` number, since 1 + 4 + 2 + 622 + 2 + 4 + 3 + 24 + 4 = 666.

142622243244 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×142622243244² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 142622243199 and 142622243208.

It is not an unprimeable number, because it can be changed into a prime (142622243243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20438284 + ... + 20445260.

It is an arithmetic number, because the mean of its divisors is an integer number (2785524560).

Almost surely, 2^142622243244 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142622243244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (200557768320).

142622243244 is an abundant number, since it is smaller than the sum of its proper divisors (258493293396).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142622243244 is a wasteful number, since it uses less digits than its factorization.

142622243244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8440 (or 8435 counting only the distinct ones).

The product of its digits is 147456, while the sum is 36.

Adding to 142622243244 its reverse (442342226241), we get a palindrome (584964469485).

The spelling of 142622243244 in words is "one hundred forty-two billion, six hundred twenty-two million, two hundred forty-three thousand, two hundred forty-four".