20875776 has 40 divisors (see below), whose sum is σ = 55618464. Its totient is φ = 6958080.

The previous prime is 20875759. The next prime is 20875781. The reversal of 20875776 is 67757802.

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, 5260 + ... + 8331.

Almost surely, 2^20875776 is an apocalyptic number.

It is an amenable number.

20875776 is an abundant number, since it is smaller than the sum of its proper divisors (34742688).

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

20875776 is an equidigital number, since it uses as much as digits as its factorization.

20875776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13612 (or 13596 counting only the distinct ones).

The product of its (nonzero) digits is 164640, while the sum is 42.

The square root of 20875776 is about 4569.0016414968. The cubic root of 20875776 is about 275.3473341235.

The spelling of 20875776 in words is "twenty million, eight hundred seventy-five thousand, seven hundred seventy-six".