20364956 has 24 divisors (see below), whose sum is σ = 36550080. Its totient is φ = 9925632.

The previous prime is 20364947. The next prime is 20364977. The reversal of 20364956 is 65946302.

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, 27965 + ... + 28683.

It is an arithmetic number, because the mean of its divisors is an integer number (1522920).

Almost surely, 2^20364956 is an apocalyptic number.

It is an amenable number.

20364956 is a deficient number, since it is larger than the sum of its proper divisors (16185124).

20364956 is a wasteful number, since it uses less digits than its factorization.

20364956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 893 (or 891 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 35.

The square root of 20364956 is about 4512.7548127502. The cubic root of 20364956 is about 273.0828910989.

The spelling of 20364956 in words is "twenty million, three hundred sixty-four thousand, nine hundred fifty-six".