18027760 has 20 divisors (see below), whose sum is σ = 41914728. Its totient is φ = 7211072.

The previous prime is 18027731. The next prime is 18027761. The reversal of 18027760 is 6772081.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18027761) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112594 + ... + 112753.

Almost surely, 2^18027760 is an apocalyptic number.

18027760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18027760 is an abundant number, since it is smaller than the sum of its proper divisors (23886968).

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

18027760 is a wasteful number, since it uses less digits than its factorization.

18027760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225360 (or 225354 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 31.

The square root of 18027760 is about 4245.9109741020. The cubic root of 18027760 is about 262.2087957418.

The spelling of 18027760 in words is "eighteen million, twenty-seven thousand, seven hundred sixty".