22466618 has 4 divisors (see below), whose sum is σ = 33699930. Its totient is φ = 11233308.

The previous prime is 22466617. The next prime is 22466621. The reversal of 22466618 is 81666422.

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., 19864849 + 2601769 = 4457^2 + 1613^2 .

It is not an unprimeable number, because it can be changed into a prime (22466617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5616653 + ... + 5616656.

Almost surely, 2^22466618 is an apocalyptic number.

22466618 is a deficient number, since it is larger than the sum of its proper divisors (11233312).

22466618 is a wasteful number, since it uses less digits than its factorization.

22466618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11233311.

The product of its digits is 27648, while the sum is 35.

The square root of 22466618 is about 4739.8964123702. The cubic root of 22466618 is about 282.1711232727.

The spelling of 22466618 in words is "twenty-two million, four hundred sixty-six thousand, six hundred eighteen".