252421774 has 32 divisors (see below), whose sum is σ = 420183936. Its totient is φ = 112775520.

The previous prime is 252421769. The next prime is 252421787. The reversal of 252421774 is 477124252.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 369237 + ... + 369919.

It is an arithmetic number, because the mean of its divisors is an integer number (13130748).

Almost surely, 2^252421774 is an apocalyptic number.

252421774 is a deficient number, since it is larger than the sum of its proper divisors (167762162).

252421774 is a wasteful number, since it uses less digits than its factorization.

252421774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 960.

The product of its digits is 31360, while the sum is 34.

The square root of 252421774 is about 15887.7869446943. The cubic root of 252421774 is about 631.9881543873.

The spelling of 252421774 in words is "two hundred fifty-two million, four hundred twenty-one thousand, seven hundred seventy-four".