20476964 has 12 divisors (see below), whose sum is σ = 35910000. Its totient is φ = 10216968.

The previous prime is 20476933. The next prime is 20477053. The reversal of 20476964 is 46967402.

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, 3134 + ... + 7125.

It is an arithmetic number, because the mean of its divisors is an integer number (2992500).

Almost surely, 2^20476964 is an apocalyptic number.

It is an amenable number.

20476964 is a deficient number, since it is larger than the sum of its proper divisors (15433036).

20476964 is a wasteful number, since it uses less digits than its factorization.

20476964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10762 (or 10760 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 20476964 is about 4525.1479533823. The cubic root of 20476964 is about 273.5826313028.

The spelling of 20476964 in words is "twenty million, four hundred seventy-six thousand, nine hundred sixty-four".