20765912 has 16 divisors (see below), whose sum is σ = 39222360. Its totient is φ = 10306624.

The previous prime is 20765909. The next prime is 20765923. The reversal of 20765912 is 21956702.

It is a congruent number.

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, 8378 + ... + 10569.

Almost surely, 2^20765912 is an apocalyptic number.

It is an amenable number.

20765912 is a deficient number, since it is larger than the sum of its proper divisors (18456448).

20765912 is a wasteful number, since it uses less digits than its factorization.

20765912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19090 (or 19086 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 20765912 is about 4556.9630237692. The cubic root of 20765912 is about 274.8634561810.

The spelling of 20765912 in words is "twenty million, seven hundred sixty-five thousand, nine hundred twelve".