18042608 has 10 divisors (see below), whose sum is σ = 34957584. Its totient is φ = 9021296.

The previous prime is 18042599. The next prime is 18042653. The reversal of 18042608 is 80624081.

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, 563816 + ... + 563847.

Almost surely, 2^18042608 is an apocalyptic number.

It is an amenable number.

18042608 is a deficient number, since it is larger than the sum of its proper divisors (16914976).

18042608 is a wasteful number, since it uses less digits than its factorization.

18042608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1127671 (or 1127665 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 18042608 is about 4247.6591200331. The cubic root of 18042608 is about 262.2807626756.

Adding to 18042608 its reverse (80624081), we get a palindrome (98666689).

The spelling of 18042608 in words is "eighteen million, forty-two thousand, six hundred eight".