18029518 has 16 divisors (see below), whose sum is σ = 30658320. Its totient is φ = 7883136.

The previous prime is 18029491. The next prime is 18029521. The reversal of 18029518 is 81592081.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17755 + ... + 18742.

It is an arithmetic number, because the mean of its divisors is an integer number (1916145).

Almost surely, 2^18029518 is an apocalyptic number.

18029518 is a deficient number, since it is larger than the sum of its proper divisors (12628802).

18029518 is a wasteful number, since it uses less digits than its factorization.

18029518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36531.

The product of its (nonzero) digits is 5760, while the sum is 34.

The square root of 18029518 is about 4246.1179917661. The cubic root of 18029518 is about 262.2173186731.

The spelling of 18029518 in words is "eighteen million, twenty-nine thousand, five hundred eighteen".