18385374 has 32 divisors (see below), whose sum is σ = 43163136. Its totient is φ = 5110560.

The previous prime is 18385363. The next prime is 18385399. The reversal of 18385374 is 47358381.

It is a plaindrome in base 16.

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, 4362 + ... + 7469.

It is an arithmetic number, because the mean of its divisors is an integer number (1348848).

Almost surely, 2^18385374 is an apocalyptic number.

18385374 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

18385374 is an abundant number, since it is smaller than the sum of its proper divisors (24777762).

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

18385374 is a wasteful number, since it uses less digits than its factorization.

18385374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11880.

The product of its digits is 80640, while the sum is 39.

The square root of 18385374 is about 4287.8169270621. The cubic root of 18385374 is about 263.9312550574.

The spelling of 18385374 in words is "eighteen million, three hundred eighty-five thousand, three hundred seventy-four".