22520884 has 12 divisors (see below), whose sum is σ = 39444804. Its totient is φ = 11250944.

The previous prime is 22520881. The next prime is 22520893. The reversal of 22520884 is 48802522.

It can be written as a sum of positive squares in 2 ways, for example, as 16160400 + 6360484 = 4020^2 + 2522^2 .

It is a super-2 number, since 2×22520884² = 1014380432282912, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22520881) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7854 + ... + 10330.

It is an arithmetic number, because the mean of its divisors is an integer number (3287067).

Almost surely, 2^22520884 is an apocalyptic number.

It is an amenable number.

22520884 is a deficient number, since it is larger than the sum of its proper divisors (16923920).

22520884 is a wasteful number, since it uses less digits than its factorization.

22520884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4754 (or 4752 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 31.

The square root of 22520884 is about 4745.6173465630. The cubic root of 22520884 is about 282.3981265274.

The spelling of 22520884 in words is "twenty-two million, five hundred twenty thousand, eight hundred eighty-four".