252664434 has 80 divisors (see below), whose sum is σ = 626636736. Its totient is φ = 75448800.

The previous prime is 252664351. The next prime is 252664463. The reversal of 252664434 is 434466252.

252664434 is a `hidden beast` number, since 2 + 5 + 2 + 6 + 644 + 3 + 4 = 666.

It is a super-3 number, since 3×252664434³ (a number of 26 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 125524 + ... + 127520.

Almost surely, 2^252664434 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 252664434, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (313318368).

252664434 is an abundant number, since it is smaller than the sum of its proper divisors (373972302).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

252664434 is a wasteful number, since it uses less digits than its factorization.

252664434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2093 (or 2084 counting only the distinct ones).

The product of its digits is 138240, while the sum is 36.

The square root of 252664434 is about 15895.4217937115. The cubic root of 252664434 is about 632.1906053973.

The spelling of 252664434 in words is "two hundred fifty-two million, six hundred sixty-four thousand, four hundred thirty-four".