22020924 has 48 divisors (see below), whose sum is σ = 55036800. Its totient is φ = 6831936.

The previous prime is 22020923. The next prime is 22020931. The reversal of 22020924 is 42902022.

It is a self number, because there is not a number n which added to its sum of digits gives 22020924.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22020923) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12634 + ... + 14270.

It is an arithmetic number, because the mean of its divisors is an integer number (1146600).

Almost surely, 2^22020924 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 22020924, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27518400).

22020924 is an abundant number, since it is smaller than the sum of its proper divisors (33015876).

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

22020924 is a wasteful number, since it uses less digits than its factorization.

22020924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1722 (or 1720 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 22020924 is about 4692.6457356165. The cubic root of 22020924 is about 280.2927380554.

Adding to 22020924 its reverse (42902022), we get a palindrome (64922946).

The spelling of 22020924 in words is "twenty-two million, twenty thousand, nine hundred twenty-four".