815430472 has 16 divisors (see below), whose sum is σ = 1530264240. Its totient is φ = 407360016.

The previous prime is 815430433. The next prime is 815430481. The reversal of 815430472 is 274034518.

It is a super-2 number, since 2×815430472² = 1329853709332285568, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34518 + ... + 53125.

It is an arithmetic number, because the mean of its divisors is an integer number (95641515).

Almost surely, 2^815430472 is an apocalyptic number.

It is an amenable number.

815430472 is a deficient number, since it is larger than the sum of its proper divisors (714833768).

815430472 is a wasteful number, since it uses less digits than its factorization.

815430472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88812 (or 88808 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 815430472 is about 28555.7432401960. The cubic root of 815430472 is about 934.2482913113.

The spelling of 815430472 in words is "eight hundred fifteen million, four hundred thirty thousand, four hundred seventy-two".