18342828 has 96 divisors (see below), whose sum is σ = 57254400. Its totient is φ = 4961088.

The previous prime is 18342817. The next prime is 18342851. The reversal of 18342828 is 82824381.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 18342792 and 18342801.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13726 + ... + 15002.

It is an arithmetic number, because the mean of its divisors is an integer number (596400).

Almost surely, 2^18342828 is an apocalyptic number.

18342828 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18342828, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28627200).

18342828 is an abundant number, since it is smaller than the sum of its proper divisors (38911572).

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

18342828 is a wasteful number, since it uses less digits than its factorization.

18342828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1316 (or 1308 counting only the distinct ones).

The product of its digits is 24576, while the sum is 36.

The square root of 18342828 is about 4282.8527875705. The cubic root of 18342828 is about 263.7275080960.

The spelling of 18342828 in words is "eighteen million, three hundred forty-two thousand, eight hundred twenty-eight".