20248812 has 36 divisors (see below), whose sum is σ = 52618440. Its totient is φ = 6734016.

The previous prime is 20248777. The next prime is 20248831. The reversal of 20248812 is 21884202.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×20248812² = 820028774822688, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46548 + ... + 46980.

Almost surely, 2^20248812 is an apocalyptic number.

It is an amenable number.

20248812 is an abundant number, since it is smaller than the sum of its proper divisors (32369628).

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

20248812 is an equidigital number, since it uses as much as digits as its factorization.

20248812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 879 (or 438 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 27.

The square root of 20248812 is about 4499.8679980639. The cubic root of 20248812 is about 272.5627586002.

Multiplying 20248812 by its sum of digits (27), we get a square (546717924 = 23382²).

20248812 divided by its sum of digits (27) gives a square (749956 = 866²).

It can be divided in two parts, 202488 and 12, that added together give a square (202500 = 450²).

The spelling of 20248812 in words is "twenty million, two hundred forty-eight thousand, eight hundred twelve".