252770928 has 80 divisors (see below), whose sum is σ = 666624000. Its totient is φ = 82517760.

The previous prime is 252770911. The next prime is 252770933. The reversal of 252770928 is 829077252.

It is a happy number.

252770928 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 252770928.

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, 724098 + ... + 724446.

It is an arithmetic number, because the mean of its divisors is an integer number (8332800).

Almost surely, 2^252770928 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 252770928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (333312000).

252770928 is an abundant number, since it is smaller than the sum of its proper divisors (413853072).

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

252770928 is a wasteful number, since it uses less digits than its factorization.

252770928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 630 (or 624 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 42.

The square root of 252770928 is about 15898.7712732777. The cubic root of 252770928 is about 632.2794123163.

The spelling of 252770928 in words is "two hundred fifty-two million, seven hundred seventy thousand, nine hundred twenty-eight".