22945618 has 4 divisors (see below), whose sum is σ = 34418430. Its totient is φ = 11472808.

The previous prime is 22945603. The next prime is 22945639. The reversal of 22945618 is 81654922.

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., 14953689 + 7991929 = 3867^2 + 2827^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5736403 + ... + 5736406.

Almost surely, 2^22945618 is an apocalyptic number.

22945618 is a deficient number, since it is larger than the sum of its proper divisors (11472812).

22945618 is a wasteful number, since it uses less digits than its factorization.

22945618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11472811.

The product of its digits is 34560, while the sum is 37.

The square root of 22945618 is about 4790.1584524940. The cubic root of 22945618 is about 284.1623831661.

The spelling of 22945618 in words is "twenty-two million, nine hundred forty-five thousand, six hundred eighteen".