22465418 has 4 divisors (see below), whose sum is σ = 33698130. Its totient is φ = 11232708.

The previous prime is 22465409. The next prime is 22465423. The reversal of 22465418 is 81456422.

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., 20457529 + 2007889 = 4523^2 + 1417^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5616353 + ... + 5616356.

Almost surely, 2^22465418 is an apocalyptic number.

22465418 is a deficient number, since it is larger than the sum of its proper divisors (11232712).

22465418 is a wasteful number, since it uses less digits than its factorization.

22465418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11232711.

The product of its digits is 15360, while the sum is 32.

The square root of 22465418 is about 4739.7698256350. The cubic root of 22465418 is about 282.1660993542.

The spelling of 22465418 in words is "twenty-two million, four hundred sixty-five thousand, four hundred eighteen".