18338056 has 16 divisors (see below), whose sum is σ = 37509840. Its totient is φ = 8335440.

The previous prime is 18338011. The next prime is 18338083. The reversal of 18338056 is 65083381.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104106 + ... + 104281.

It is an arithmetic number, because the mean of its divisors is an integer number (2344365).

Almost surely, 2^18338056 is an apocalyptic number.

It is an amenable number.

18338056 is an abundant number, since it is smaller than the sum of its proper divisors (19171784).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18338056 is a wasteful number, since it uses less digits than its factorization.

18338056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208404 (or 208400 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 18338056 is about 4282.2956460291. The cubic root of 18338056 is about 263.7046359991.

It can be divided in two parts, 1833 and 8056, that added together give a palindrome (9889).

The spelling of 18338056 in words is "eighteen million, three hundred thirty-eight thousand, fifty-six".