22805816 has 16 divisors (see below), whose sum is σ = 46648440. Its totient is φ = 10366240.

The previous prime is 22805779. The next prime is 22805821. The reversal of 22805816 is 61850822.

It is a zygodrome in base 12.

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, 129491 + ... + 129666.

Almost surely, 2^22805816 is an apocalyptic number.

It is an amenable number.

22805816 is an abundant number, since it is smaller than the sum of its proper divisors (23842624).

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

22805816 is a wasteful number, since it uses less digits than its factorization.

22805816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259174 (or 259170 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 22805816 is about 4775.5435292750. The cubic root of 22805816 is about 283.5840966439.

The spelling of 22805816 in words is "twenty-two million, eight hundred five thousand, eight hundred sixteen".