22365660 has 96 divisors (see below), whose sum is σ = 68866560. Its totient is φ = 5398272.

The previous prime is 22365647. The next prime is 22365671. The reversal of 22365660 is 6656322.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 25794 + ... + 26646.

It is an arithmetic number, because the mean of its divisors is an integer number (717360).

Almost surely, 2^22365660 is an apocalyptic number.

22365660 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 22365660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34433280).

22365660 is an abundant number, since it is smaller than the sum of its proper divisors (46500900).

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

22365660 is a wasteful number, since it uses less digits than its factorization.

22365660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 907 (or 905 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 22365660 is about 4729.2346103783. The cubic root of 22365660 is about 281.7478254666.

The spelling of 22365660 in words is "twenty-two million, three hundred sixty-five thousand, six hundred sixty".