18332248 has 32 divisors (see below), whose sum is σ = 38419920. Its totient is φ = 8128000.

The previous prime is 18332243. The next prime is 18332257. The reversal of 18332248 is 84223381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18332243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1068 + ... + 6148.

Almost surely, 2^18332248 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18332248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19209960).

18332248 is an abundant number, since it is smaller than the sum of its proper divisors (20087672).

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

18332248 is a wasteful number, since it uses less digits than its factorization.

18332248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5139 (or 5135 counting only the distinct ones).

The product of its digits is 9216, while the sum is 31.

The square root of 18332248 is about 4281.6174513845. The cubic root of 18332248 is about 263.6767930214.

The spelling of 18332248 in words is "eighteen million, three hundred thirty-two thousand, two hundred forty-eight".