239992542 has 12 divisors (see below), whose sum is σ = 519983880. Its totient is φ = 79997508.

The previous prime is 239992517. The next prime is 239992549. The reversal of 239992542 is 245299932.

239992542 is a `hidden beast` number, since 2 + 399 + 9 + 254 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (239992549) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6666442 + ... + 6666477.

It is an arithmetic number, because the mean of its divisors is an integer number (43331990).

Almost surely, 2^239992542 is an apocalyptic number.

239992542 is an abundant number, since it is smaller than the sum of its proper divisors (279991338).

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

239992542 is a wasteful number, since it uses less digits than its factorization.

239992542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13332927 (or 13332924 counting only the distinct ones).

The product of its digits is 349920, while the sum is 45.

The square root of 239992542 is about 15491.6926770447. The cubic root of 239992542 is about 621.4400639741.

The spelling of 239992542 in words is "two hundred thirty-nine million, nine hundred ninety-two thousand, five hundred forty-two".