18004152 has 16 divisors (see below), whose sum is σ = 45010440. Its totient is φ = 6001376.

The previous prime is 18004121. The next prime is 18004171. The reversal of 18004152 is 25140081.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 375063 + ... + 375110.

Almost surely, 2^18004152 is an apocalyptic number.

18004152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18004152 is an abundant number, since it is smaller than the sum of its proper divisors (27006288).

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

18004152 is a wasteful number, since it uses less digits than its factorization.

18004152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 750182 (or 750178 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 18004152 is about 4243.1299767978. The cubic root of 18004152 is about 262.0942884611.

The spelling of 18004152 in words is "eighteen million, four thousand, one hundred fifty-two".