18413328 has 20 divisors (see below), whose sum is σ = 47567888. Its totient is φ = 6137760.

The previous prime is 18413323. The next prime is 18413341. The reversal of 18413328 is 82331481.

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

It is a junction number, because it is equal to n+sod(n) for n = 18413295 and 18413304.

It is not an unprimeable number, because it can be changed into a prime (18413323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 191758 + ... + 191853.

Almost surely, 2^18413328 is an apocalyptic number.

It is an amenable number.

18413328 is an abundant number, since it is smaller than the sum of its proper divisors (29154560).

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

18413328 is a wasteful number, since it uses less digits than its factorization.

18413328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383622 (or 383616 counting only the distinct ones).

The product of its digits is 4608, while the sum is 30.

The square root of 18413328 is about 4291.0753896896. The cubic root of 18413328 is about 264.0649518790.

The spelling of 18413328 in words is "eighteen million, four hundred thirteen thousand, three hundred twenty-eight".