252120204 has 72 divisors (see below), whose sum is σ = 760032000. Its totient is φ = 68900832.

The previous prime is 252120203. The next prime is 252120233. The reversal of 252120204 is 402021252.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252120203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15954 + ... + 27545.

It is an arithmetic number, because the mean of its divisors is an integer number (10556000).

Almost surely, 2^252120204 is an apocalyptic number.

It is an amenable number.

252120204 is an abundant number, since it is smaller than the sum of its proper divisors (507911796).

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

252120204 is a wasteful number, since it uses less digits than its factorization.

252120204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43539 (or 43534 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 252120204 is about 15878.2934851325. The cubic root of 252120204 is about 631.7363739191.

Adding to 252120204 its reverse (402021252), we get a palindrome (654141456).

The spelling of 252120204 in words is "two hundred fifty-two million, one hundred twenty thousand, two hundred four".