22364618 has 12 divisors (see below), whose sum is σ = 33832050. Its totient is φ = 11087976.

The previous prime is 22364593. The next prime is 22364627. The reversal of 22364618 is 81646322.

It can be written as a sum of positive squares in only one way, i.e., 16949689 + 5414929 = 4117^2 + 2327^2 .

It is a super-2 number, since 2×22364618² = 1000352276571848, which contains 22 as substring.

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 5 ways as a sum of consecutive naturals, for example, 63908 + ... + 64256.

Almost surely, 2^22364618 is an apocalyptic number.

22364618 is a deficient number, since it is larger than the sum of its proper divisors (11467432).

22364618 is an equidigital number, since it uses as much as digits as its factorization.

22364618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 709 (or 530 counting only the distinct ones).

The product of its digits is 13824, while the sum is 32.

The square root of 22364618 is about 4729.1244432770. The cubic root of 22364618 is about 281.7434499225.

The spelling of 22364618 in words is "twenty-two million, three hundred sixty-four thousand, six hundred eighteen".