18322426 has 12 divisors (see below), whose sum is σ = 28401786. Its totient is φ = 8864760.

The previous prime is 18322411. The next prime is 18322453. The reversal of 18322426 is 62422381.

It can be written as a sum of positive squares in only one way, i.e., 17514225 + 808201 = 4185^2 + 899^2 .

It is a super-2 number, since 2×18322426² = 671422589050952, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 18322394 and 18322403.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2845 + ... + 6688.

Almost surely, 2^18322426 is an apocalyptic number.

18322426 is a deficient number, since it is larger than the sum of its proper divisors (10079360).

18322426 is an equidigital number, since it uses as much as digits as its factorization.

18322426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9597 (or 9566 counting only the distinct ones).

The product of its digits is 4608, while the sum is 28.

The square root of 18322426 is about 4280.4703012636. The cubic root of 18322426 is about 263.6296939400.

The spelling of 18322426 in words is "eighteen million, three hundred twenty-two thousand, four hundred twenty-six".