22097908 has 24 divisors (see below), whose sum is σ = 44452800. Its totient is φ = 9415488.

The previous prime is 22097879. The next prime is 22097927. The reversal of 22097908 is 80979022.

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, 2808 + ... + 7216.

It is an arithmetic number, because the mean of its divisors is an integer number (1852200).

Almost surely, 2^22097908 is an apocalyptic number.

22097908 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

22097908 is an abundant number, since it is smaller than the sum of its proper divisors (22354892).

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

22097908 is a wasteful number, since it uses less digits than its factorization.

22097908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4599 (or 4597 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 22097908 is about 4700.8412013171. The cubic root of 22097908 is about 280.6189877565.

It can be divided in two parts, 22097 and 908, that added together give a triangular number (23005 = T₂₁₄).

The spelling of 22097908 in words is "twenty-two million, ninety-seven thousand, nine hundred eight".