22084618 has 4 divisors (see below), whose sum is σ = 33126930. Its totient is φ = 11042308.

The previous prime is 22084613. The next prime is 22084619. The reversal of 22084618 is 81648022.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 14615329 + 7469289 = 3823^2 + 2733^2 .

It is a zygodrome in base 4.

It is a self number, because there is not a number n which added to its sum of digits gives 22084618.

It is not an unprimeable number, because it can be changed into a prime (22084613) by changing a digit.

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 as a sum of consecutive naturals, namely, 5521153 + ... + 5521156.

Almost surely, 2^22084618 is an apocalyptic number.

22084618 is a deficient number, since it is larger than the sum of its proper divisors (11042312).

22084618 is a wasteful number, since it uses less digits than its factorization.

22084618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11042311.

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 22084618 is about 4699.4274119301. The cubic root of 22084618 is about 280.5627203753.

The spelling of 22084618 in words is "twenty-two million, eighty-four thousand, six hundred eighteen".