629999994 has 32 divisors (see below), whose sum is σ = 1379931840. Its totient is φ = 190559232.

The previous prime is 629999983. The next prime is 630000013. The reversal of 629999994 is 499999926.

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, 63847 + ... + 73050.

It is an arithmetic number, because the mean of its divisors is an integer number (43122870).

Almost surely, 2^629999994 is an apocalyptic number.

629999994 is an abundant number, since it is smaller than the sum of its proper divisors (749931846).

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

629999994 is a wasteful number, since it uses less digits than its factorization.

629999994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136974.

The product of its digits is 25509168, while the sum is 66.

The square root of 629999994 is about 25099.8006764994. The cubic root of 629999994 is about 857.2618855099.

The spelling of 629999994 in words is "six hundred twenty-nine million, nine hundred ninety-nine thousand, nine hundred ninety-four".