18048140 has 24 divisors (see below), whose sum is σ = 41347152. Its totient is φ = 6562880.

The previous prime is 18048139. The next prime is 18048161. The reversal of 18048140 is 4184081.

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, 40799 + ... + 41238.

It is an arithmetic number, because the mean of its divisors is an integer number (1722798).

Almost surely, 2^18048140 is an apocalyptic number.

18048140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18048140 is an abundant number, since it is smaller than the sum of its proper divisors (23299012).

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

18048140 is a wasteful number, since it uses less digits than its factorization.

18048140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82057 (or 82055 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 26.

The square root of 18048140 is about 4248.3102523239. The cubic root of 18048140 is about 262.3075656913.

The spelling of 18048140 in words is "eighteen million, forty-eight thousand, one hundred forty".