252394020 has 72 divisors (see below), whose sum is σ = 786307704. Its totient is φ = 65484288.

The previous prime is 252393997. The next prime is 252394063. The reversal of 252394020 is 20493252.

252394020 is a `hidden beast` number, since 25 + 239 + 402 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 10342656 + 242051364 = 3216^2 + 15558^2 .

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 12289 + ... + 25608.

Almost surely, 2^252394020 is an apocalyptic number.

252394020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252394020 is an abundant number, since it is smaller than the sum of its proper divisors (533913684).

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

252394020 is a wasteful number, since it uses less digits than its factorization.

252394020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37949 (or 37944 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 252394020 is about 15886.9134824861. The cubic root of 252394020 is about 631.9649909839.

The spelling of 252394020 in words is "two hundred fifty-two million, three hundred ninety-four thousand, twenty".