2106816 has 28 divisors (see below), whose sum is σ = 5574792. Its totient is φ = 702208.

The previous prime is 2106809. The next prime is 2106829. The reversal of 2106816 is 6186012.

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, 5295 + ... + 5678.

2^2106816 is an apocalyptic number.

It is an amenable number.

2106816 is an abundant number, since it is smaller than the sum of its proper divisors (3467976).

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

2106816 is a wasteful number, since it uses less digits than its factorization.

2106816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10988 (or 10978 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 2106816 is about 1451.4875128640. The cubic root of 2106816 is about 128.1963133440.

The spelling of 2106816 in words is "two million, one hundred six thousand, eight hundred sixteen".