22716618 has 16 divisors (see below), whose sum is σ = 46112160. Its totient is φ = 7459056.

The previous prime is 22716559. The next prime is 22716623. The reversal of 22716618 is 81661722.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27853 + ... + 28656.

It is an arithmetic number, because the mean of its divisors is an integer number (2882010).

Almost surely, 2^22716618 is an apocalyptic number.

22716618 is an abundant number, since it is smaller than the sum of its proper divisors (23395542).

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

22716618 is a wasteful number, since it uses less digits than its factorization.

22716618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56581.

The product of its digits is 8064, while the sum is 33.

The square root of 22716618 is about 4766.1953380028. The cubic root of 22716618 is about 283.2138959874.

The spelling of 22716618 in words is "twenty-two million, seven hundred sixteen thousand, six hundred eighteen".