18326960 has 40 divisors (see below), whose sum is σ = 43028496. Its totient is φ = 7258880.

The previous prime is 18326911. The next prime is 18326977. The reversal of 18326960 is 6962381.

It is a Cunningham number, because it is equal to 4281²-1.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 18326960.

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, 7490 + ... + 9630.

Almost surely, 2^18326960 is an apocalyptic number.

18326960 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 18326960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21514248).

18326960 is an abundant number, since it is smaller than the sum of its proper divisors (24701536).

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

18326960 is a wasteful number, since it uses less digits than its factorization.

18326960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2261 (or 2255 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 18326960 is about 4280.9998832049. Note that the first 3 decimals coincide. The cubic root of 18326960 is about 263.6514377573.

The spelling of 18326960 in words is "eighteen million, three hundred twenty-six thousand, nine hundred sixty".