22650544 has 60 divisors (see below), whose sum is σ = 51652944. Its totient is φ = 9593472.

The previous prime is 22650541. The next prime is 22650559. The reversal of 22650544 is 44505622.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22650541) 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 11 ways as a sum of consecutive naturals, for example, 130842 + ... + 131014.

Almost surely, 2^22650544 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 22650544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25826472).

22650544 is an abundant number, since it is smaller than the sum of its proper divisors (29002400).

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

22650544 is a wasteful number, since it uses less digits than its factorization.

22650544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362 (or 349 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 22650544 is about 4759.2587658164. The cubic root of 22650544 is about 282.9390421717.

The spelling of 22650544 in words is "twenty-two million, six hundred fifty thousand, five hundred forty-four".