20944044 has 36 divisors (see below), whose sum is σ = 57755880. Its totient is φ = 6346560.

The previous prime is 20944043. The next prime is 20944057. The reversal of 20944044 is 44044902.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 20943999 and 20944017.

It is not an unprimeable number, because it can be changed into a prime (20944043) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26049 + ... + 26840.

It is an arithmetic number, because the mean of its divisors is an integer number (1604330).

Almost surely, 2^20944044 is an apocalyptic number.

It is an amenable number.

20944044 is an abundant number, since it is smaller than the sum of its proper divisors (36811836).

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

20944044 is a wasteful number, since it uses less digits than its factorization.

20944044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52910 (or 52905 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 20944044 is about 4576.4663223933. The cubic root of 20944044 is about 275.6471546509.

Adding to 20944044 its reverse (44044902), we get a palindrome (64988946).

It can be divided in two parts, 209 and 44044, that added together give a triangular number (44253 = T₂₉₇).

The spelling of 20944044 in words is "twenty million, nine hundred forty-four thousand, forty-four".