20860992 has 42 divisors (see below), whose sum is σ = 59795918. Its totient is φ = 6953472.

The previous prime is 20860969. The next prime is 20861017. The reversal of 20860992 is 29906802.

It can be written as a sum of positive squares in only one way, i.e., 14017536 + 6843456 = 3744^2 + 2616^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17533 + ... + 18684.

Almost surely, 2^20860992 is an apocalyptic number.

It is an amenable number.

20860992 is an abundant number, since it is smaller than the sum of its proper divisors (38934926).

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

20860992 is a wasteful number, since it uses less digits than its factorization.

20860992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36235 (or 36222 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 20860992 is about 4567.3834960511. The cubic root of 20860992 is about 275.2823194335.

The spelling of 20860992 in words is "twenty million, eight hundred sixty thousand, nine hundred ninety-two".