18374328 has 48 divisors (see below), whose sum is σ = 56874480. Its totient is φ = 5249664.

The previous prime is 18374327. The next prime is 18374329. The reversal of 18374328 is 82347381.

It is an interprime number because it is at equal distance from previous prime (18374327) and next prime (18374329).

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 junction number, because it is equal to n+sod(n) for n = 18374292 and 18374301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18374327) 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, 17725 + ... + 18732.

It is an arithmetic number, because the mean of its divisors is an integer number (1184885).

Almost surely, 2^18374328 is an apocalyptic number.

18374328 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

18374328 is an abundant number, since it is smaller than the sum of its proper divisors (38500152).

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

18374328 is a wasteful number, since it uses less digits than its factorization.

18374328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36476 (or 36469 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 18374328 is about 4286.5286654821. The cubic root of 18374328 is about 263.8783875136.

The spelling of 18374328 in words is "eighteen million, three hundred seventy-four thousand, three hundred twenty-eight".