810015216 has 20 divisors (see below), whose sum is σ = 2092539432. Its totient is φ = 270005056.

The previous prime is 810015191. The next prime is 810015233. The reversal of 810015216 is 612510018.

810015216 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×810015216² = 1312249300303053312, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

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, 8437611 + ... + 8437706.

Almost surely, 2^810015216 is an apocalyptic number.

It is an amenable number.

810015216 is an abundant number, since it is smaller than the sum of its proper divisors (1282524216).

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

810015216 is a wasteful number, since it uses less digits than its factorization.

810015216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16875328 (or 16875322 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 24.

The square root of 810015216 is about 28460.7662581316. The cubic root of 810015216 is about 932.1755887434.

The spelling of 810015216 in words is "eight hundred ten million, fifteen thousand, two hundred sixteen".