18868030 has 16 divisors (see below), whose sum is σ = 34118784. Its totient is φ = 7512480.

The previous prime is 18868021. The next prime is 18868043. The reversal of 18868030 is 3086881.

It is a super-3 number, since 3×18868030³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2001 + ... + 6460.

It is an arithmetic number, because the mean of its divisors is an integer number (2132424).

Almost surely, 2^18868030 is an apocalyptic number.

18868030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18868030 is a deficient number, since it is larger than the sum of its proper divisors (15250754).

18868030 is a wasteful number, since it uses less digits than its factorization.

18868030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8691.

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 18868030 is about 4343.7345683179. The cubic root of 18868030 is about 266.2209237426.

The spelling of 18868030 in words is "eighteen million, eight hundred sixty-eight thousand, thirty".