18422426 has 16 divisors (see below), whose sum is σ = 30561408. Its totient is φ = 8258400.

The previous prime is 18422389. The next prime is 18422479. The reversal of 18422426 is 62422481.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4130 + ... + 7341.

It is an arithmetic number, because the mean of its divisors is an integer number (1910088).

Almost surely, 2^18422426 is an apocalyptic number.

18422426 is a deficient number, since it is larger than the sum of its proper divisors (12138982).

18422426 is a wasteful number, since it uses less digits than its factorization.

18422426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11557.

The product of its digits is 6144, while the sum is 29.

The square root of 18422426 is about 4292.1353659921. The cubic root of 18422426 is about 264.1084360943.

The spelling of 18422426 in words is "eighteen million, four hundred twenty-two thousand, four hundred twenty-six".