252438064 has 20 divisors (see below), whose sum is σ = 510364656. Its totient is φ = 120731072.

The previous prime is 252438061. The next prime is 252438071. The reversal of 252438064 is 460834252.

252438064 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (252438061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 342619 + ... + 343354.

Almost surely, 2^252438064 is an apocalyptic number.

It is an amenable number.

252438064 is an abundant number, since it is smaller than the sum of its proper divisors (257926592).

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

252438064 is a wasteful number, since it uses less digits than its factorization.

252438064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 686004 (or 685998 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 34.

The square root of 252438064 is about 15888.2995943556. The cubic root of 252438064 is about 632.0017491807.

The spelling of 252438064 in words is "two hundred fifty-two million, four hundred thirty-eight thousand, sixty-four".