18008248 has 8 divisors (see below), whose sum is σ = 33765480. Its totient is φ = 9004120.

The previous prime is 18008231. The next prime is 18008279. The reversal of 18008248 is 84280081.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1125508 + ... + 1125523.

It is an arithmetic number, because the mean of its divisors is an integer number (4220685).

Almost surely, 2^18008248 is an apocalyptic number.

It is an amenable number.

18008248 is a deficient number, since it is larger than the sum of its proper divisors (15757232).

18008248 is a wasteful number, since it uses less digits than its factorization.

18008248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2251037 (or 2251033 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 31.

The square root of 18008248 is about 4243.6126119145. The cubic root of 18008248 is about 262.1141627065.

The spelling of 18008248 in words is "eighteen million, eight thousand, two hundred forty-eight".