18622468 has 6 divisors (see below), whose sum is σ = 32589326. Its totient is φ = 9311232.

The previous prime is 18622459. The next prime is 18622469. The reversal of 18622468 is 86422681.

It can be written as a sum of positive squares in only one way, i.e., 16257024 + 2365444 = 4032^2 + 1538^2 .

It is a super-2 number, since 2×18622468² = 693592628822048, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18622469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2327805 + ... + 2327812.

Almost surely, 2^18622468 is an apocalyptic number.

It is an amenable number.

18622468 is a deficient number, since it is larger than the sum of its proper divisors (13966858).

18622468 is a wasteful number, since it uses less digits than its factorization.

18622468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4655621 (or 4655619 counting only the distinct ones).

The product of its digits is 36864, while the sum is 37.

The square root of 18622468 is about 4315.3757657938. The cubic root of 18622468 is about 265.0609471779.

The spelling of 18622468 in words is "eighteen million, six hundred twenty-two thousand, four hundred sixty-eight".