18091014 has 16 divisors (see below), whose sum is σ = 36775920. Its totient is φ = 5931360.

The previous prime is 18090997. The next prime is 18091027. The reversal of 18091014 is 41019081.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24349 + ... + 25080.

It is an arithmetic number, because the mean of its divisors is an integer number (2298495).

Almost surely, 2^18091014 is an apocalyptic number.

18091014 is an abundant number, since it is smaller than the sum of its proper divisors (18684906).

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

18091014 is a wasteful number, since it uses less digits than its factorization.

18091014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49495.

The product of its (nonzero) digits is 288, while the sum is 24.

The square root of 18091014 is about 4253.3532653660. The cubic root of 18091014 is about 262.5151084275.

The spelling of 18091014 in words is "eighteen million, ninety-one thousand, fourteen".