18355068 has 18 divisors (see below), whose sum is σ = 46397624. Its totient is φ = 6118344.

The previous prime is 18355067. The next prime is 18355079. The reversal of 18355068 is 86055381.

It is a tau number, because it is divible by the number of its divisors (18).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 509863 = 18355068 / (1 + 8 + 3 + 5 + 5 + 0 + 6 + 8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18355061) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 254896 + ... + 254967.

Almost surely, 2^18355068 is an apocalyptic number.

18355068 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

18355068 is an abundant number, since it is smaller than the sum of its proper divisors (28042556).

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

18355068 is a wasteful number, since it uses less digits than its factorization.

18355068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509873 (or 509868 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 18355068 is about 4284.2815033562. The cubic root of 18355068 is about 263.7861560310.

It can be divided in two parts, 1835 and 5068, that added together give a triangular number (6903 = T₁₁₇).

The spelling of 18355068 in words is "eighteen million, three hundred fifty-five thousand, sixty-eight".