815667272 has 16 divisors (see below), whose sum is σ = 1747858560. Its totient is φ = 349571664.

The previous prime is 815667263. The next prime is 815667317. The reversal of 815667272 is 272766518.

It is a super-2 number, since 2×815667272² = 1330626197223843968, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7282688 + ... + 7282799.

It is an arithmetic number, because the mean of its divisors is an integer number (109241160).

Almost surely, 2^815667272 is an apocalyptic number.

It is an amenable number.

815667272 is an abundant number, since it is smaller than the sum of its proper divisors (932191288).

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

815667272 is a wasteful number, since it uses less digits than its factorization.

815667272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14565500 (or 14565496 counting only the distinct ones).

The product of its digits is 282240, while the sum is 44.

The square root of 815667272 is about 28559.8892154714. The cubic root of 815667272 is about 934.3387174079.

The spelling of 815667272 in words is "eight hundred fifteen million, six hundred sixty-seven thousand, two hundred seventy-two".