20764512 has 60 divisors (see below), whose sum is σ = 61075476. Its totient is φ = 6920640.

The previous prime is 20764507. The next prime is 20764529. The reversal of 20764512 is 21546702.

20764512 is a `hidden beast` number, since 2 + 0 + 7 + 645 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1414 + ... + 6597.

Almost surely, 2^20764512 is an apocalyptic number.

It is an amenable number.

20764512 is an abundant number, since it is smaller than the sum of its proper divisors (40310964).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20764512 is an equidigital number, since it uses as much as digits as its factorization.

20764512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8033 (or 8016 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 20764512 is about 4556.8094101026. The cubic root of 20764512 is about 274.8572791108.

The spelling of 20764512 in words is "twenty million, seven hundred sixty-four thousand, five hundred twelve".