18327960 has 144 divisors (see below), whose sum is σ = 69357600. Its totient is φ = 4185216.

The previous prime is 18327919. The next prime is 18327961. The reversal of 18327960 is 6972381.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18327961) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 17121 + ... + 18159.

It is an arithmetic number, because the mean of its divisors is an integer number (481650).

Almost surely, 2^18327960 is an apocalyptic number.

18327960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18327960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34678800).

18327960 is an abundant number, since it is smaller than the sum of its proper divisors (51029640).

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

18327960 is a wasteful number, since it uses less digits than its factorization.

18327960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1070 (or 1056 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 18327960 is about 4281.1166767562. The cubic root of 18327960 is about 263.6562329996.

The spelling of 18327960 in words is "eighteen million, three hundred twenty-seven thousand, nine hundred sixty".