815483868 has 24 divisors (see below), whose sum is σ = 1933990800. Its totient is φ = 267371520.

The previous prime is 815483843. The next prime is 815483939. The reversal of 815483868 is 868384518.

It is a self number, because there is not a number n which added to its sum of digits gives 815483868.

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, 556293 + ... + 557756.

It is an arithmetic number, because the mean of its divisors is an integer number (80582950).

Almost surely, 2^815483868 is an apocalyptic number.

It is an amenable number.

815483868 is an abundant number, since it is smaller than the sum of its proper divisors (1118506932).

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

815483868 is a wasteful number, since it uses less digits than its factorization.

815483868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1114117 (or 1114115 counting only the distinct ones).

The product of its digits is 1474560, while the sum is 51.

The square root of 815483868 is about 28556.6781681623. The cubic root of 815483868 is about 934.2686830081.

The spelling of 815483868 in words is "eight hundred fifteen million, four hundred eighty-three thousand, eight hundred sixty-eight".