18085374 has 12 divisors (see below), whose sum is σ = 39185016. Its totient is φ = 6028452.

The previous prime is 18085373. The next prime is 18085381. The reversal of 18085374 is 47358081.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18085373) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 502354 + ... + 502389.

It is an arithmetic number, because the mean of its divisors is an integer number (3265418).

Almost surely, 2^18085374 is an apocalyptic number.

18085374 is an abundant number, since it is smaller than the sum of its proper divisors (21099642).

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

18085374 is a wasteful number, since it uses less digits than its factorization.

18085374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1004751 (or 1004748 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 18085374 is about 4252.6902073864. The cubic root of 18085374 is about 262.4878252857.

The spelling of 18085374 in words is "eighteen million, eighty-five thousand, three hundred seventy-four".