20264913 has 12 divisors (see below), whose sum is σ = 29352960. Its totient is φ = 13472376.

The previous prime is 20264899. The next prime is 20264927. The reversal of 20264913 is 31946202.

20264913 is a `hidden beast` number, since 2 + 0 + 2 + 649 + 13 = 666.

It is an interprime number because it is at equal distance from previous prime (20264899) and next prime (20264927).

It is not a de Polignac number, because 20264913 - 2⁹ = 20264401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20264113) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 508 + ... + 6386.

It is an arithmetic number, because the mean of its divisors is an integer number (2446080).

Almost surely, 2^20264913 is an apocalyptic number.

It is an amenable number.

20264913 is a deficient number, since it is larger than the sum of its proper divisors (9088047).

20264913 is a wasteful number, since it uses less digits than its factorization.

20264913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6268 (or 6265 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 20264913 is about 4501.6566950402. The cubic root of 20264913 is about 272.6349829245.

The spelling of 20264913 in words is "twenty million, two hundred sixty-four thousand, nine hundred thirteen".