22566480 has 80 divisors (see below), whose sum is σ = 74084544. Its totient is φ = 5662720.

The previous prime is 22566469. The next prime is 22566487. The reversal of 22566480 is 8466522.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22566487) 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, 1315 + ... + 6845.

Almost surely, 2^22566480 is an apocalyptic number.

22566480 is a gapful number since it is divisible by the number (20) 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 22566480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37042272).

22566480 is an abundant number, since it is smaller than the sum of its proper divisors (51518064).

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

22566480 is a wasteful number, since it uses less digits than its factorization.

22566480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5564 (or 5558 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 22566480 is about 4750.4189288946. The cubic root of 22566480 is about 282.5885800484.

The spelling of 22566480 in words is "twenty-two million, five hundred sixty-six thousand, four hundred eighty".