629684628 has 24 divisors (see below), whose sum is σ = 1469768160. Its totient is φ = 209822880.

The previous prime is 629684609. The next prime is 629684659. The reversal of 629684628 is 826486926.

It is a congruent number.

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, 36738 + ... + 51078.

It is an arithmetic number, because the mean of its divisors is an integer number (61240340).

Almost surely, 2^629684628 is an apocalyptic number.

It is an amenable number.

629684628 is an abundant number, since it is smaller than the sum of its proper divisors (840083532).

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

629684628 is a wasteful number, since it uses less digits than its factorization.

629684628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18007 (or 18005 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 51.

The square root of 629684628 is about 25093.5176489866. The cubic root of 629684628 is about 857.1188186433.

The spelling of 629684628 in words is "six hundred twenty-nine million, six hundred eighty-four thousand, six hundred twenty-eight".