22495618 has 4 divisors (see below), whose sum is σ = 33743430. Its totient is φ = 11247808.

The previous prime is 22495609. The next prime is 22495643. The reversal of 22495618 is 81659422.

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., 14010049 + 8485569 = 3743^2 + 2913^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5623903 + ... + 5623906.

Almost surely, 2^22495618 is an apocalyptic number.

22495618 is a deficient number, since it is larger than the sum of its proper divisors (11247812).

22495618 is a wasteful number, since it uses less digits than its factorization.

22495618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11247811.

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

The square root of 22495618 is about 4742.9545644039. The cubic root of 22495618 is about 282.2924802749.

The spelling of 22495618 in words is "twenty-two million, four hundred ninety-five thousand, six hundred eighteen".