18232908 has 48 divisors (see below), whose sum is σ = 45440640. Its totient is φ = 5670144.

The previous prime is 18232883. The next prime is 18232931. The reversal of 18232908 is 80923281.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 28035 + ... + 28677.

It is an arithmetic number, because the mean of its divisors is an integer number (946680).

Almost surely, 2^18232908 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 18232908, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22720320).

18232908 is an abundant number, since it is smaller than the sum of its proper divisors (27207732).

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

18232908 is a wasteful number, since it uses less digits than its factorization.

18232908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 806 (or 804 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 18232908 is about 4270.0009367680. Note that the first 3 decimals coincide. The cubic root of 18232908 is about 263.1996537044.

The spelling of 18232908 in words is "eighteen million, two hundred thirty-two thousand, nine hundred eight".