142332444 has 48 divisors (see below), whose sum is σ = 370487040. Its totient is φ = 47254320.

The previous prime is 142332413. The next prime is 142332457. The reversal of 142332444 is 444233241.

It is a happy number.

142332444 is digitally balanced in base 2, 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 (27).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25899 + ... + 30909.

It is an arithmetic number, because the mean of its divisors is an integer number (7718480).

Almost surely, 2^142332444 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 142332444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185243520).

142332444 is an abundant number, since it is smaller than the sum of its proper divisors (228154596).

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

142332444 is a wasteful number, since it uses less digits than its factorization.

142332444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5287 (or 5279 counting only the distinct ones).

The product of its digits is 9216, while the sum is 27.

The square root of 142332444 is about 11930.3161735136. The cubic root of 142332444 is about 522.1171622333.

Adding to 142332444 its reverse (444233241), we get a palindrome (586565685).

The spelling of 142332444 in words is "one hundred forty-two million, three hundred thirty-two thousand, four hundred forty-four".