20369456 has 20 divisors (see below), whose sum is σ = 40429704. Its totient is φ = 9936000.

The previous prime is 20369429. The next prime is 20369507. The reversal of 20369456 is 65496302.

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, 14870 + ... + 16181.

Almost surely, 2^20369456 is an apocalyptic number.

It is an amenable number.

20369456 is a deficient number, since it is larger than the sum of its proper divisors (20060248).

20369456 is a wasteful number, since it uses less digits than its factorization.

20369456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31100 (or 31094 counting only the distinct ones).

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

The square root of 20369456 is about 4513.2533720145. The cubic root of 20369456 is about 273.1030037949.

The spelling of 20369456 in words is "twenty million, three hundred sixty-nine thousand, four hundred fifty-six".