39142924 has 24 divisors (see below), whose sum is σ = 71447040. Its totient is φ = 18740736.

The previous prime is 39142919. The next prime is 39142927. The reversal of 39142924 is 42924193.

It is a self number, because there is not a number n which added to its sum of digits gives 39142924.

It is not an unprimeable number, because it can be changed into a prime (39142927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13404 + ... + 16060.

It is an arithmetic number, because the mean of its divisors is an integer number (2976960).

Almost surely, 2^39142924 is an apocalyptic number.

It is an amenable number.

39142924 is a deficient number, since it is larger than the sum of its proper divisors (32304116).

39142924 is a wasteful number, since it uses less digits than its factorization.

39142924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2817 (or 2815 counting only the distinct ones).

The product of its digits is 15552, while the sum is 34.

The square root of 39142924 is about 6256.4306117786. The cubic root of 39142924 is about 339.5349003939.

The spelling of 39142924 in words is "thirty-nine million, one hundred forty-two thousand, nine hundred twenty-four".