252039816 has 64 divisors (see below), whose sum is σ = 800131200. Its totient is φ = 72010944.

The previous prime is 252039797. The next prime is 252039839. The reversal of 252039816 is 618930252.

252039816 is a `hidden beast` number, since 252 + 0 + 398 + 16 = 666.

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

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, 81835 + ... + 84858.

It is an arithmetic number, because the mean of its divisors is an integer number (12502050).

Almost surely, 2^252039816 is an apocalyptic number.

It is an amenable number.

252039816 is an abundant number, since it is smaller than the sum of its proper divisors (548091384).

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

252039816 is a wasteful number, since it uses less digits than its factorization.

252039816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166715 (or 166705 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 252039816 is about 15875.7619029765. The cubic root of 252039816 is about 631.6692241743.

The spelling of 252039816 in words is "two hundred fifty-two million, thirty-nine thousand, eight hundred sixteen".