20548864 has 36 divisors (see below), whose sum is σ = 46881184. Its totient is φ = 8805888.

The previous prime is 20548859. The next prime is 20548889. The reversal of 20548864 is 46884502.

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, 3942 + ... + 7525.

Almost surely, 2^20548864 is an apocalyptic number.

It is an amenable number.

20548864 is an abundant number, since it is smaller than the sum of its proper divisors (26332320).

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

20548864 is an equidigital number, since it uses as much as digits as its factorization.

20548864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11490 (or 11476 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 37.

The square root of 20548864 is about 4533.0854834208. The cubic root of 20548864 is about 273.9024640854.

It can be divided in two parts, 20548 and 864, that added together give a palindrome (21412).

The spelling of 20548864 in words is "twenty million, five hundred forty-eight thousand, eight hundred sixty-four".