18327140 has 24 divisors (see below), whose sum is σ = 41448120. Its totient is φ = 6766848.

The previous prime is 18327137. The next prime is 18327181. The reversal of 18327140 is 4172381.

It can be written as a sum of positive squares in 4 ways, for example, as 417316 + 17909824 = 646^2 + 4232^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34985 + ... + 35504.

It is an arithmetic number, because the mean of its divisors is an integer number (1727005).

Almost surely, 2^18327140 is an apocalyptic number.

18327140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18327140 is an abundant number, since it is smaller than the sum of its proper divisors (23120980).

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

18327140 is a wasteful number, since it uses less digits than its factorization.

18327140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70511 (or 70509 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 18327140 is about 4281.0209062792. The cubic root of 18327140 is about 263.6523009138.

The spelling of 18327140 in words is "eighteen million, three hundred twenty-seven thousand, one hundred forty".