252690232 has 32 divisors (see below), whose sum is σ = 482806800. Its totient is φ = 123957504.

The previous prime is 252690211. The next prime is 252690239. The reversal of 252690232 is 232096252.

It is a happy number.

It is a super-4 number, since 4×252690232⁴ (a number of 35 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 252690194 and 252690203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252690239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 156244 + ... + 157852.

Almost surely, 2^252690232 is an apocalyptic number.

It is an amenable number.

252690232 is a deficient number, since it is larger than the sum of its proper divisors (230116568).

252690232 is a wasteful number, since it uses less digits than its factorization.

252690232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1975 (or 1971 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 252690232 is about 15896.2332645190. The cubic root of 252690232 is about 632.2121210204.

The spelling of 252690232 in words is "two hundred fifty-two million, six hundred ninety thousand, two hundred thirty-two".