628625232 has 40 divisors (see below), whose sum is σ = 1804388480. Its totient is φ = 209541600.

The previous prime is 628625219. The next prime is 628625273. The reversal of 628625232 is 232526826.

628625232 is a `hidden beast` number, since 6 + 2 + 8 + 625 + 23 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 727144 + ... + 728007.

It is an arithmetic number, because the mean of its divisors is an integer number (45109712).

Almost surely, 2^628625232 is an apocalyptic number.

It is an amenable number.

628625232 is an abundant number, since it is smaller than the sum of its proper divisors (1175763248).

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

628625232 is a wasteful number, since it uses less digits than its factorization.

628625232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1455168 (or 1455156 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 628625232 is about 25072.3998053637. The cubic root of 628625232 is about 856.6378699729.

The spelling of 628625232 in words is "six hundred twenty-eight million, six hundred twenty-five thousand, two hundred thirty-two".