22645118 has 4 divisors (see below), whose sum is σ = 33967680. Its totient is φ = 11322558.

The previous prime is 22645099. The next prime is 22645121. The reversal of 22645118 is 81154622.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5661278 + ... + 5661281.

It is an arithmetic number, because the mean of its divisors is an integer number (8491920).

Almost surely, 2^22645118 is an apocalyptic number.

22645118 is a deficient number, since it is larger than the sum of its proper divisors (11322562).

22645118 is a wasteful number, since it uses less digits than its factorization.

22645118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11322561.

The product of its digits is 3840, while the sum is 29.

The square root of 22645118 is about 4758.6886849215. The cubic root of 22645118 is about 282.9164474259.

The spelling of 22645118 in words is "twenty-two million, six hundred forty-five thousand, one hundred eighteen".