20944704 has 112 divisors (see below), whose sum is σ = 62032896. Its totient is φ = 6182400.

The previous prime is 20944691. The next prime is 20944709. The reversal of 20944704 is 40744902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20944709) 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 15 ways as a sum of consecutive naturals, for example, 99159 + ... + 99369.

Almost surely, 2^20944704 is an apocalyptic number.

20944704 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20944704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31016448).

20944704 is an abundant number, since it is smaller than the sum of its proper divisors (41088192).

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

20944704 is a wasteful number, since it uses less digits than its factorization.

20944704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284 (or 274 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 20944704 is about 4576.5384298616. The cubic root of 20944704 is about 275.6500500677.

The spelling of 20944704 in words is "twenty million, nine hundred forty-four thousand, seven hundred four".