502308864 has 140 divisors (see below), whose sum is σ = 1502615994. Its totient is φ = 167215104.

The previous prime is 502308857. The next prime is 502308893. The reversal of 502308864 is 468803205.

It can be written as a sum of positive squares in only one way, i.e., 406425600 + 95883264 = 20160^2 + 9792^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 663174 + ... + 663930.

Almost surely, 2^502308864 is an apocalyptic number.

502308864 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 502308864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (751307997).

502308864 is an abundant number, since it is smaller than the sum of its proper divisors (1000307130).

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

502308864 is an frugal number, since it uses more digits than its factorization.

502308864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 795 (or 762 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 502308864 is about 22412.2480800120. The cubic root of 502308864 is about 794.9203480184.

The spelling of 502308864 in words is "five hundred two million, three hundred eight thousand, eight hundred sixty-four".