18119458 has 16 divisors (see below), whose sum is σ = 31820544. Its totient is φ = 7575840.

The previous prime is 18119441. The next prime is 18119489. The reversal of 18119458 is 85491181.

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, 15210 + ... + 16357.

It is an arithmetic number, because the mean of its divisors is an integer number (1988784).

Almost surely, 2^18119458 is an apocalyptic number.

18119458 is a deficient number, since it is larger than the sum of its proper divisors (13701086).

18119458 is a wasteful number, since it uses less digits than its factorization.

18119458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31617.

The product of its digits is 11520, while the sum is 37.

The square root of 18119458 is about 4256.6956668289. The cubic root of 18119458 is about 262.6526181286.

The spelling of 18119458 in words is "eighteen million, one hundred nineteen thousand, four hundred fifty-eight".