625623400 has 48 divisors (see below), whose sum is σ = 1501511040. Its totient is φ = 242174400.

The previous prime is 625623389. The next prime is 625623413. The reversal of 625623400 is 4326526.

It is a happy number.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44254 + ... + 56653.

It is an arithmetic number, because the mean of its divisors is an integer number (31281480).

Almost surely, 2^625623400 is an apocalyptic number.

It is an amenable number.

625623400 is an abundant number, since it is smaller than the sum of its proper divisors (875887640).

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

625623400 is a wasteful number, since it uses less digits than its factorization.

625623400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100954 (or 100945 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 625623400 is about 25012.4648925291. The cubic root of 625623400 is about 855.2721452792.

Adding to 625623400 its reverse (4326526), we get a palindrome (629949926).

The spelling of 625623400 in words is "six hundred twenty-five million, six hundred twenty-three thousand, four hundred".