252389772 has 36 divisors (see below), whose sum is σ = 641820816. Its totient is φ = 83624160.

The previous prime is 252389771. The next prime is 252389773. The reversal of 252389772 is 277983252.

It is an interprime number because it is at equal distance from previous prime (252389771) and next prime (252389773).

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (252389771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14979 + ... + 27002.

It is an arithmetic number, because the mean of its divisors is an integer number (17828356).

Almost surely, 2^252389772 is an apocalyptic number.

It is an amenable number.

252389772 is an abundant number, since it is smaller than the sum of its proper divisors (389431044).

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

252389772 is a wasteful number, since it uses less digits than its factorization.

252389772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42158 (or 42153 counting only the distinct ones).

The product of its digits is 423360, while the sum is 45.

The square root of 252389772 is about 15886.7797869801. The cubic root of 252389772 is about 631.9614454663.

The spelling of 252389772 in words is "two hundred fifty-two million, three hundred eighty-nine thousand, seven hundred seventy-two".