630398008 has 32 divisors (see below), whose sum is σ = 1234551600. Its totient is φ = 301473792.

The previous prime is 630397993. The next prime is 630398011. The reversal of 630398008 is 800893036.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (37).

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, 585 + ... + 35512.

Almost surely, 2^630398008 is an apocalyptic number.

It is an amenable number.

630398008 is a deficient number, since it is larger than the sum of its proper divisors (604153592).

630398008 is a wasteful number, since it uses less digits than its factorization.

630398008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36199 (or 36195 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 630398008 is about 25107.7280533305. The cubic root of 630398008 is about 857.4423777887.

The spelling of 630398008 in words is "six hundred thirty million, three hundred ninety-eight thousand, eight".