142222340 has 96 divisors (see below), whose sum is σ = 355622400. Its totient is φ = 47241216.

The previous prime is 142222321. The next prime is 142222343. The reversal of 142222340 is 43222241.

142222340 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (142222343) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 100961 + ... + 102359.

It is an arithmetic number, because the mean of its divisors is an integer number (3704400).

Almost surely, 2^142222340 is an apocalyptic number.

142222340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142222340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (177811200).

142222340 is an abundant number, since it is smaller than the sum of its proper divisors (213400060).

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

142222340 is a wasteful number, since it uses less digits than its factorization.

142222340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1461 (or 1459 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 142222340 is about 11925.7008179813. The cubic root of 142222340 is about 521.9824962447.

142222340 divided by its sum of digits (20) gives a palindrome (7111117).

Adding to 142222340 its reverse (43222241), we get a palindrome (185444581).

Subtracting from 142222340 its reverse (43222241), we obtain a palindrome (99000099).

The spelling of 142222340 in words is "one hundred forty-two million, two hundred twenty-two thousand, three hundred forty".