8640354038 has 16 divisors (see below), whose sum is σ = 13689747456. Its totient is φ = 4083586920.

The previous prime is 8640353983. The next prime is 8640354043. The reversal of 8640354038 is 8304530468.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 8640353986 and 8640354004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1617806 + ... + 1623137.

It is an arithmetic number, because the mean of its divisors is an integer number (855609216).

Almost surely, 2^8640354038 is an apocalyptic number.

8640354038 is a deficient number, since it is larger than the sum of its proper divisors (5049393418).

8640354038 is a wasteful number, since it uses less digits than its factorization.

8640354038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3241019.

The product of its (nonzero) digits is 276480, while the sum is 41.

The square root of 8640354038 is about 92953.5047106886. The cubic root of 8640354038 is about 2051.9991632433. Note that the first 3 decimals are identical.

The spelling of 8640354038 in words is "eight billion, six hundred forty million, three hundred fifty-four thousand, thirty-eight".