252409672 has 16 divisors (see below), whose sum is σ = 473946300. Its totient is φ = 126024000.

The previous prime is 252409601. The next prime is 252409673. The reversal of 252409672 is 276904252.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 246678436 + 5731236 = 15706^2 + 2394^2 .

It is not an unprimeable number, because it can be changed into a prime (252409673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16579 + ... + 27922.

Almost surely, 2^252409672 is an apocalyptic number.

It is an amenable number.

252409672 is a deficient number, since it is larger than the sum of its proper divisors (221536628).

252409672 is a wasteful number, since it uses less digits than its factorization.

252409672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45216 (or 45212 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 252409672 is about 15887.4060815477. The cubic root of 252409672 is about 631.9780543039.

The spelling of 252409672 in words is "two hundred fifty-two million, four hundred nine thousand, six hundred seventy-two".