252409132 has 36 divisors (see below), whose sum is σ = 474275704. Its totient is φ = 117504000.

The previous prime is 252409121. The next prime is 252409159. The reversal of 252409132 is 231904252.

It is a self number, because there is not a number n which added to its sum of digits gives 252409132.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 111007 + ... + 113257.

Almost surely, 2^252409132 is an apocalyptic number.

It is an amenable number.

252409132 is a deficient number, since it is larger than the sum of its proper divisors (221866572).

252409132 is a wasteful number, since it uses less digits than its factorization.

252409132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2386 (or 2367 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 252409132 is about 15887.3890869457. The cubic root of 252409132 is about 631.9776036234.

The spelling of 252409132 in words is "two hundred fifty-two million, four hundred nine thousand, one hundred thirty-two".