18248208 has 160 divisors (see below), whose sum is σ = 57853440. Its totient is φ = 4884480.

The previous prime is 18248183. The next prime is 18248231. The reversal of 18248208 is 80284281.

It is a super-2 number, since 2×18248208² = 665994190422528, which contains 22 as substring.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (33).

18248208 is a modest number, since divided by 8208 gives 1824 as remainder.

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, 170491 + ... + 170597.

It is an arithmetic number, because the mean of its divisors is an integer number (361584).

Almost surely, 2^18248208 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 18248208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28926720).

18248208 is an abundant number, since it is smaller than the sum of its proper divisors (39605232).

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

18248208 is a wasteful number, since it uses less digits than its factorization.

18248208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165 (or 159 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 33.

The square root of 18248208 is about 4271.7921297741. The cubic root of 18248208 is about 263.2732537546.

The spelling of 18248208 in words is "eighteen million, two hundred forty-eight thousand, two hundred eight".