20475084 has 48 divisors (see below), whose sum is σ = 57478400. Its totient is φ = 5541696.

The previous prime is 20475079. The next prime is 20475101. The reversal of 20475084 is 48057402.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4819 + ... + 8010.

Almost surely, 2^20475084 is an apocalyptic number.

It is an amenable number.

20475084 is an abundant number, since it is smaller than the sum of its proper divisors (37003316).

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

20475084 is a wasteful number, since it uses less digits than its factorization.

20475084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12862 (or 12860 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 20475084 is about 4524.9402205996. The cubic root of 20475084 is about 273.5742584619.

The spelling of 20475084 in words is "twenty million, four hundred seventy-five thousand, eighty-four".