22666880 has 64 divisors (see below), whose sum is σ = 54859680. Its totient is φ = 8954880.

The previous prime is 22666879. The next prime is 22666883. The reversal of 22666880 is 8866622.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (22666883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68315 + ... + 68645.

Almost surely, 2^22666880 is an apocalyptic number.

22666880 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 22666880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27429840).

22666880 is an abundant number, since it is smaller than the sum of its proper divisors (32192800).

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

22666880 is a wasteful number, since it uses less digits than its factorization.

22666880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457 (or 445 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 22666880 is about 4760.9746901239. The cubic root of 22666880 is about 283.0070461522.

The spelling of 22666880 in words is "twenty-two million, six hundred sixty-six thousand, eight hundred eighty".