20760564 has 24 divisors (see below), whose sum is σ = 52845408. Its totient is φ = 6291040.

The previous prime is 20760547. The next prime is 20760601. The reversal of 20760564 is 46506702.

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, 78507 + ... + 78770.

It is an arithmetic number, because the mean of its divisors is an integer number (2201892).

Almost surely, 2^20760564 is an apocalyptic number.

It is an amenable number.

20760564 is an abundant number, since it is smaller than the sum of its proper divisors (32084844).

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

20760564 is a wasteful number, since it uses less digits than its factorization.

20760564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157295 (or 157293 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 20760564 is about 4556.3761916681. The cubic root of 20760564 is about 274.8398582774.

The spelling of 20760564 in words is "twenty million, seven hundred sixty thousand, five hundred sixty-four".