20320896 has 32 divisors (see below), whose sum is σ = 53978400. Its totient is φ = 6773504.

The previous prime is 20320877. The next prime is 20320907. The reversal of 20320896 is 69802302.

It is a tau number, because it is divible by the number of its divisors (32).

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, 26076 + ... + 26843.

It is an arithmetic number, because the mean of its divisors is an integer number (1686825).

Almost surely, 2^20320896 is an apocalyptic number.

It is an amenable number.

20320896 is an abundant number, since it is smaller than the sum of its proper divisors (33657504).

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

20320896 is an equidigital number, since it uses as much as digits as its factorization.

20320896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52936 (or 52924 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 20320896 is about 4507.8704506674. The cubic root of 20320896 is about 272.8858087546.

The spelling of 20320896 in words is "twenty million, three hundred twenty thousand, eight hundred ninety-six".