20944576 has 28 divisors (see below), whose sum is σ = 42140632. Its totient is φ = 10326528.

The previous prime is 20944571. The next prime is 20944577. The reversal of 20944576 is 67544902.

It is not an unprimeable number, because it can be changed into a prime (20944571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2431 + ... + 6913.

Almost surely, 2^20944576 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20944576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21070316).

20944576 is an abundant number, since it is smaller than the sum of its proper divisors (21196056).

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

20944576 is an equidigital number, since it uses as much as digits as its factorization.

20944576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4568 (or 4558 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 20944576 is about 4576.5244454717. The cubic root of 20944576 is about 275.6494885371.

It can be divided in two parts, 2094 and 4576, that added together give a triangular number (6670 = T₁₁₅).

The spelling of 20944576 in words is "twenty million, nine hundred forty-four thousand, five hundred seventy-six".