20455296 has 32 divisors (see below), whose sum is σ = 54335400. Its totient is φ = 6818304.

The previous prime is 20455289. The next prime is 20455307. The reversal of 20455296 is 69255402.

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

It is a congruent number.

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, 26251 + ... + 27018.

Almost surely, 2^20455296 is an apocalyptic number.

It is an amenable number.

20455296 is an abundant number, since it is smaller than the sum of its proper divisors (33880104).

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

20455296 is an equidigital number, since it uses as much as digits as its factorization.

20455296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53286 (or 53274 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 20455296 is about 4522.7531438273. The cubic root of 20455296 is about 273.4860987535.

The spelling of 20455296 in words is "twenty million, four hundred fifty-five thousand, two hundred ninety-six".