252400022 has 32 divisors (see below), whose sum is σ = 452639232. Its totient is φ = 103207104.

The previous prime is 252400019. The next prime is 252400039. The reversal of 252400022 is 220004252.

252400022 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 2×252400022² = 127411542211200968, which contains 22 as substring.

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, 175418 + ... + 176850.

It is an arithmetic number, because the mean of its divisors is an integer number (14144976).

Almost surely, 2^252400022 is an apocalyptic number.

252400022 is a deficient number, since it is larger than the sum of its proper divisors (200239210).

252400022 is a wasteful number, since it uses less digits than its factorization.

252400022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2012.

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 252400022 is about 15887.1023789740. The cubic root of 252400022 is about 631.9700003786.

Adding to 252400022 its reverse (220004252), we get a palindrome (472404274).

The spelling of 252400022 in words is "two hundred fifty-two million, four hundred thousand, twenty-two".