20892156 has 12 divisors (see below), whose sum is σ = 48748392. Its totient is φ = 6964048.

The previous prime is 20892149. The next prime is 20892163. The reversal of 20892156 is 65129802.

It is an interprime number because it is at equal distance from previous prime (20892149) and next prime (20892163).

It is a tau number, because it is divible by the number of its divisors (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, 870495 + ... + 870518.

It is an arithmetic number, because the mean of its divisors is an integer number (4062366).

Almost surely, 2^20892156 is an apocalyptic number.

It is an amenable number.

20892156 is an abundant number, since it is smaller than the sum of its proper divisors (27856236).

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

20892156 is a wasteful number, since it uses less digits than its factorization.

20892156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1741020 (or 1741018 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 20892156 is about 4570.7938041439. The cubic root of 20892156 is about 275.4193316103.

The spelling of 20892156 in words is "twenty million, eight hundred ninety-two thousand, one hundred fifty-six".