864502944 has 48 divisors (see below), whose sum is σ = 2273398848. Its totient is φ = 287649792.

The previous prime is 864502939. The next prime is 864502949. The reversal of 864502944 is 449205468.

It is an interprime number because it is at equal distance from previous prime (864502939) and next prime (864502949).

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 864502896 and 864502905.

It is not an unprimeable number, because it can be changed into a prime (864502949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47589 + ... + 63195.

It is an arithmetic number, because the mean of its divisors is an integer number (47362476).

Almost surely, 2^864502944 is an apocalyptic number.

It is an amenable number.

864502944 is an abundant number, since it is smaller than the sum of its proper divisors (1408895904).

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

864502944 is a wasteful number, since it uses less digits than its factorization.

864502944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16197 (or 16189 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 42.

The square root of 864502944 is about 29402.4309199086. The cubic root of 864502944 is about 952.6254040908.

The spelling of 864502944 in words is "eight hundred sixty-four million, five hundred two thousand, nine hundred forty-four".