639714230 has 16 divisors (see below), whose sum is σ = 1212090480. Its totient is φ = 242417952.

The previous prime is 639714223. The next prime is 639714247. The reversal of 639714230 is 32417936.

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, 1683269 + ... + 1683648.

It is an arithmetic number, because the mean of its divisors is an integer number (75755655).

Almost surely, 2^639714230 is an apocalyptic number.

639714230 is a deficient number, since it is larger than the sum of its proper divisors (572376250).

639714230 is a wasteful number, since it uses less digits than its factorization.

639714230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3366943.

The product of its (nonzero) digits is 27216, while the sum is 35.

The square root of 639714230 is about 25292.5726251799. The cubic root of 639714230 is about 861.6455917503.

The spelling of 639714230 in words is "six hundred thirty-nine million, seven hundred fourteen thousand, two hundred thirty".