22666530 has 16 divisors (see below), whose sum is σ = 54399744. Its totient is φ = 6044400.

The previous prime is 22666529. The next prime is 22666531. The reversal of 22666530 is 3566622.

It is an interprime number because it is at equal distance from previous prime (22666529) and next prime (22666531).

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 755551 = 22666530 / (2 + 2 + 6 + 6 + 6 + 5 + 3 + 0).

It is not an unprimeable number, because it can be changed into a prime (22666531) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 377746 + ... + 377805.

It is an arithmetic number, because the mean of its divisors is an integer number (3399984).

Almost surely, 2^22666530 is an apocalyptic number.

22666530 is an abundant number, since it is smaller than the sum of its proper divisors (31733214).

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

22666530 is a wasteful number, since it uses less digits than its factorization.

22666530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 755561.

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

The square root of 22666530 is about 4760.9379328027. The cubic root of 22666530 is about 283.0055895045.

The spelling of 22666530 in words is "twenty-two million, six hundred sixty-six thousand, five hundred thirty".