252632638 has 8 divisors (see below), whose sum is σ = 379043280. Its totient is φ = 126284880.

The previous prime is 252632623. The next prime is 252632651. The reversal of 252632638 is 836236252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 252632597 and 252632606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3898 + ... + 22813.

It is an arithmetic number, because the mean of its divisors is an integer number (47380410).

Almost surely, 2^252632638 is an apocalyptic number.

252632638 is a deficient number, since it is larger than the sum of its proper divisors (126410642).

252632638 is a wasteful number, since it uses less digits than its factorization.

252632638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31442.

The product of its digits is 103680, while the sum is 37.

The square root of 252632638 is about 15894.4216000457. The cubic root of 252632638 is about 632.1640854060.

The spelling of 252632638 in words is "two hundred fifty-two million, six hundred thirty-two thousand, six hundred thirty-eight".