18042624 has 108 divisors (see below), whose sum is σ = 53569152. Its totient is φ = 5836800.

The previous prime is 18042599. The next prime is 18042653. The reversal of 18042624 is 42624081.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 94369 + ... + 94559.

Almost surely, 2^18042624 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 18042624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26784576).

18042624 is an abundant number, since it is smaller than the sum of its proper divisors (35526528).

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

18042624 is a wasteful number, since it uses less digits than its factorization.

18042624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254 (or 237 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 18042624 is about 4247.6610034229. The cubic root of 18042624 is about 262.2808402049.

The spelling of 18042624 in words is "eighteen million, forty-two thousand, six hundred twenty-four".