20914856 has 32 divisors (see below), whose sum is σ = 40481760. Its totient is φ = 10124352.

The previous prime is 20914837. The next prime is 20914867. The reversal of 20914856 is 65841902.

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, 55886 + ... + 56258.

It is an arithmetic number, because the mean of its divisors is an integer number (1265055).

Almost surely, 2^20914856 is an apocalyptic number.

It is an amenable number.

20914856 is a deficient number, since it is larger than the sum of its proper divisors (19566904).

20914856 is a wasteful number, since it uses less digits than its factorization.

20914856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 585 (or 581 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 20914856 is about 4573.2762873021. The cubic root of 20914856 is about 275.5190461611.

The spelling of 20914856 in words is "twenty million, nine hundred fourteen thousand, eight hundred fifty-six".