18342648 has 48 divisors (see below), whose sum is σ = 49884120. Its totient is φ = 6088896.

The previous prime is 18342647. The next prime is 18342673. The reversal of 18342648 is 84624381.

18342648 is a `hidden beast` number, since 1 + 8 + 3 + 4 + 2 + 648 = 666.

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

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18342641) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26515 + ... + 27197.

Almost surely, 2^18342648 is an apocalyptic number.

18342648 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

18342648 is an abundant number, since it is smaller than the sum of its proper divisors (31541472).

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

18342648 is a wasteful number, since it uses less digits than its factorization.

18342648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1068 (or 1061 counting only the distinct ones).

The product of its digits is 36864, while the sum is 36.

The square root of 18342648 is about 4282.8317734882. The cubic root of 18342648 is about 263.7266454317.

The spelling of 18342648 in words is "eighteen million, three hundred forty-two thousand, six hundred forty-eight".