18030885 has 16 divisors (see below), whose sum is σ = 28926720. Its totient is φ = 9590720.

The previous prime is 18030869. The next prime is 18030907. The reversal of 18030885 is 58803081.

It is not a de Polignac number, because 18030885 - 2⁴ = 18030869 is a prime.

It is a super-2 number, since 2×18030885² = 650225627766450, 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 15 ways as a sum of consecutive naturals, for example, 5071 + ... + 7859.

It is an arithmetic number, because the mean of its divisors is an integer number (1807920).

Almost surely, 2^18030885 is an apocalyptic number.

18030885 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18030885 is a deficient number, since it is larger than the sum of its proper divisors (10895835).

18030885 is a wasteful number, since it uses less digits than its factorization.

18030885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3228.

The product of its (nonzero) digits is 7680, while the sum is 33.

The square root of 18030885 is about 4246.2789592772. The cubic root of 18030885 is about 262.2239456208.

It can be divided in two parts, 18030 and 885, that added together give a triangular number (18915 = T₁₉₄).

The spelling of 18030885 in words is "eighteen million, thirty thousand, eight hundred eighty-five".