20982892 has 24 divisors (see below), whose sum is σ = 43414560. Its totient is φ = 8682240.

The previous prime is 20982889. The next prime is 20982931. The reversal of 20982892 is 29828902.

It is a happy number.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

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, 12109 + ... + 13732.

It is an arithmetic number, because the mean of its divisors is an integer number (1808940).

Almost surely, 2^20982892 is an apocalyptic number.

It is an amenable number.

20982892 is an abundant number, since it is smaller than the sum of its proper divisors (22431668).

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

20982892 is a wasteful number, since it uses less digits than its factorization.

20982892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25881 (or 25879 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 20982892 is about 4580.7086787963. The cubic root of 20982892 is about 275.8174771652.

The spelling of 20982892 in words is "twenty million, nine hundred eighty-two thousand, eight hundred ninety-two".