640315035 has 12 divisors (see below), whose sum is σ = 1109879472. Its totient is φ = 341501328.

The previous prime is 640315003. The next prime is 640315051. The reversal of 640315035 is 530513046.

640315035 is a `hidden beast` number, since 640 + 3 + 15 + 0 + 3 + 5 = 666.

It is not a de Polignac number, because 640315035 - 2⁵ = 640315003 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7114567 + ... + 7114656.

It is an arithmetic number, because the mean of its divisors is an integer number (92489956).

Almost surely, 2^640315035 is an apocalyptic number.

640315035 is a deficient number, since it is larger than the sum of its proper divisors (469564437).

640315035 is a wasteful number, since it uses less digits than its factorization.

640315035 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14229234 (or 14229231 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 640315035 is about 25304.4469411999. The cubic root of 640315035 is about 861.9152533040.

The spelling of 640315035 in words is "six hundred forty million, three hundred fifteen thousand, thirty-five".