629996388 has 48 divisors (see below), whose sum is σ = 1696646784. Its totient is φ = 178214400.

The previous prime is 629996363. The next prime is 629996399. The reversal of 629996388 is 883699926.

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, 28645 + ... + 45612.

It is an arithmetic number, because the mean of its divisors is an integer number (35346808).

Almost surely, 2^629996388 is an apocalyptic number.

It is an amenable number.

629996388 is an abundant number, since it is smaller than the sum of its proper divisors (1066650396).

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

629996388 is a wasteful number, since it uses less digits than its factorization.

629996388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74372 (or 74370 counting only the distinct ones).

The product of its digits is 10077696, while the sum is 60.

The square root of 629996388 is about 25099.7288431569. The cubic root of 629996388 is about 857.2602499055.

The spelling of 629996388 in words is "six hundred twenty-nine million, nine hundred ninety-six thousand, three hundred eighty-eight".