22446660 has 24 divisors (see below), whose sum is σ = 62850816. Its totient is φ = 5985760.

The previous prime is 22446653. The next prime is 22446661. The reversal of 22446660 is 6664422.

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

It is not an unprimeable number, because it can be changed into a prime (22446661) 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, 186996 + ... + 187115.

It is an arithmetic number, because the mean of its divisors is an integer number (2618784).

Almost surely, 2^22446660 is an apocalyptic number.

22446660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22446660 is an abundant number, since it is smaller than the sum of its proper divisors (40404156).

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

22446660 is a wasteful number, since it uses less digits than its factorization.

22446660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374123 (or 374121 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 22446660 is about 4737.7906243311. The cubic root of 22446660 is about 282.0875438679.

The spelling of 22446660 in words is "twenty-two million, four hundred forty-six thousand, six hundred sixty".