22966560 has 144 divisors (see below), whose sum is σ = 80491320. Its totient is φ = 5959680.

The previous prime is 22966549. The next prime is 22966571. The reversal of 22966560 is 6566922.

22966560 is a `hidden beast` number, since 2 + 2 + 96 + 6 + 560 = 666.

It is an interprime number because it is at equal distance from previous prime (22966549) and next prime (22966571).

It can be written as a sum of positive squares in 4 ways, for example, as 9217296 + 13749264 = 3036^2 + 3708^2 .

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 58846 + ... + 59234.

Almost surely, 2^22966560 is an apocalyptic number.

22966560 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 22966560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40245660).

22966560 is an abundant number, since it is smaller than the sum of its proper divisors (57524760).

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

22966560 is a wasteful number, since it uses less digits than its factorization.

22966560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451 (or 440 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 22966560 is about 4792.3438941712. The cubic root of 22966560 is about 284.2488066263.

The spelling of 22966560 in words is "twenty-two million, nine hundred sixty-six thousand, five hundred sixty".