20620712 has 16 divisors (see below), whose sum is σ = 44187360. Its totient is φ = 8837424.

The previous prime is 20620709. The next prime is 20620751. The reversal of 20620712 is 21702602.

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, 184058 + ... + 184169.

It is an arithmetic number, because the mean of its divisors is an integer number (2761710).

Almost surely, 2^20620712 is an apocalyptic number.

It is an amenable number.

20620712 is an abundant number, since it is smaller than the sum of its proper divisors (23566648).

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

20620712 is a wasteful number, since it uses less digits than its factorization.

20620712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368240 (or 368236 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 20620712 is about 4541.0034133438. The cubic root of 20620712 is about 274.2213211727.

The spelling of 20620712 in words is "twenty million, six hundred twenty thousand, seven hundred twelve".