18338055 has 8 divisors (see below), whose sum is σ = 29340912. Its totient is φ = 9780288.

The previous prime is 18338011. The next prime is 18338083. The reversal of 18338055 is 55083381.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 18338055 - 2⁷ = 18337927 is a prime.

It is a super-2 number, since 2×18338055² = 672568522366050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 611254 + ... + 611283.

It is an arithmetic number, because the mean of its divisors is an integer number (3667614).

Almost surely, 2^18338055 is an apocalyptic number.

18338055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

18338055 is a deficient number, since it is larger than the sum of its proper divisors (11002857).

18338055 is a wasteful number, since it uses less digits than its factorization.

18338055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1222545.

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 18338055 is about 4282.2955292693. The cubic root of 18338055 is about 263.7046312057.

The spelling of 18338055 in words is "eighteen million, three hundred thirty-eight thousand, fifty-five".