630629064 has 80 divisors (see below), whose sum is σ = 1902243420. Its totient is φ = 194037120.

The previous prime is 630629017. The next prime is 630629089. The reversal of 630629064 is 460926036.

630629064 is a `hidden beast` number, since 6 + 306 + 290 + 64 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 630512100 + 116964 = 25110^2 + 342^2 .

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

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 19 ways as a sum of consecutive naturals, for example, 29007 + ... + 45854.

Almost surely, 2^630629064 is an apocalyptic number.

It is an amenable number.

630629064 is an abundant number, since it is smaller than the sum of its proper divisors (1271614356).

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

630629064 is a wasteful number, since it uses less digits than its factorization.

630629064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74892 (or 74879 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 36.

The square root of 630629064 is about 25112.3289242555. The cubic root of 630629064 is about 857.5471227295.

The spelling of 630629064 in words is "six hundred thirty million, six hundred twenty-nine thousand, sixty-four".