22081708 has 48 divisors (see below), whose sum is σ = 45559584. Its totient is φ = 9251840.

The previous prime is 22081693. The next prime is 22081721. The reversal of 22081708 is 80718022.

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 15 ways as a sum of consecutive naturals, for example, 39366 + ... + 39922.

It is an arithmetic number, because the mean of its divisors is an integer number (949158).

Almost surely, 2^22081708 is an apocalyptic number.

It is an amenable number.

22081708 is an abundant number, since it is smaller than the sum of its proper divisors (23477876).

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

22081708 is a wasteful number, since it uses less digits than its factorization.

22081708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642 (or 640 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 28.

The square root of 22081708 is about 4699.1177895431. The cubic root of 22081708 is about 280.5503969657.

It can be divided in two parts, 2208 and 1708, that added together give a triangular number (3916 = T₈₈).

The spelling of 22081708 in words is "twenty-two million, eighty-one thousand, seven hundred eight".