22660128 has 48 divisors (see below), whose sum is σ = 66094560. Its totient is φ = 7553088.

The previous prime is 22660087. The next prime is 22660177. The reversal of 22660128 is 82106622.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12250 + ... + 13977.

It is an arithmetic number, because the mean of its divisors is an integer number (1376970).

Almost surely, 2^22660128 is an apocalyptic number.

It is an amenable number.

22660128 is an abundant number, since it is smaller than the sum of its proper divisors (43434432).

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

22660128 is a wasteful number, since it uses less digits than its factorization.

22660128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26246 (or 26232 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 22660128 is about 4760.2655388119. The cubic root of 22660128 is about 282.9789426911.

The spelling of 22660128 in words is "twenty-two million, six hundred sixty thousand, one hundred twenty-eight".