252400044 has 24 divisors (see below), whose sum is σ = 634236400. Its totient is φ = 77661504.

The previous prime is 252400039. The next prime is 252400061. The reversal of 252400044 is 440004252.

252400044 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×252400044² = 127411564422403872, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 808819 + ... + 809130.

Almost surely, 2^252400044 is an apocalyptic number.

It is an amenable number.

252400044 is an abundant number, since it is smaller than the sum of its proper divisors (381836356).

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

252400044 is a wasteful number, since it uses less digits than its factorization.

252400044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1617969 (or 1617967 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 21.

The square root of 252400044 is about 15887.1030713595. The cubic root of 252400044 is about 631.9700187401.

Adding to 252400044 its reverse (440004252), we get a palindrome (692404296).

The spelling of 252400044 in words is "two hundred fifty-two million, four hundred thousand, forty-four".