20659692 has 24 divisors (see below), whose sum is σ = 51042096. Its totient is φ = 6481408.

The previous prime is 20659627. The next prime is 20659697. The reversal of 20659692 is 29695602.

It is a self number, because there is not a number n which added to its sum of digits gives 20659692.

It is not an unprimeable number, because it can be changed into a prime (20659697) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50433 + ... + 50840.

It is an arithmetic number, because the mean of its divisors is an integer number (2126754).

Almost surely, 2^20659692 is an apocalyptic number.

It is an amenable number.

20659692 is an abundant number, since it is smaller than the sum of its proper divisors (30382404).

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

20659692 is a wasteful number, since it uses less digits than its factorization.

20659692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101297 (or 101295 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 39.

The square root of 20659692 is about 4545.2933898704. The cubic root of 20659692 is about 274.3940022262.

The spelling of 20659692 in words is "twenty million, six hundred fifty-nine thousand, six hundred ninety-two".