18455148 has 24 divisors (see below), whose sum is σ = 47846960. Its totient is φ = 6151680.

The previous prime is 18455093. The next prime is 18455159. The reversal of 18455148 is 84155481.

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

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, 85333 + ... + 85548.

Almost surely, 2^18455148 is an apocalyptic number.

18455148 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

18455148 is an abundant number, since it is smaller than the sum of its proper divisors (29391812).

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

18455148 is a wasteful number, since it uses less digits than its factorization.

18455148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170894 (or 170886 counting only the distinct ones).

The product of its digits is 25600, while the sum is 36.

The square root of 18455148 is about 4295.9455303809. The cubic root of 18455148 is about 264.2647138206.

The spelling of 18455148 in words is "eighteen million, four hundred fifty-five thousand, one hundred forty-eight".