10815216 has 40 divisors (see below), whose sum is σ = 28071120. Its totient is φ = 3588096.

The previous prime is 10815197. The next prime is 10815251. The reversal of 10815216 is 61251801.

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 7 ways as a sum of consecutive naturals, for example, 13680 + ... + 14448.

It is an arithmetic number, because the mean of its divisors is an integer number (701778).

Almost surely, 2^10815216 is an apocalyptic number.

10815216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

10815216 is an abundant number, since it is smaller than the sum of its proper divisors (17255904).

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

10815216 is a wasteful number, since it uses less digits than its factorization.

10815216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1073 (or 1067 counting only the distinct ones).

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

The square root of 10815216 is about 3288.6495708725. The cubic root of 10815216 is about 221.1456490262.

The spelling of 10815216 in words is "ten million, eight hundred fifteen thousand, two hundred sixteen".