18529916 has 12 divisors (see below), whose sum is σ = 32818632. Its totient is φ = 9153168.

The previous prime is 18529897. The next prime is 18529937. The reversal of 18529916 is 61992581.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27575 + ... + 28238.

It is an arithmetic number, because the mean of its divisors is an integer number (2734886).

Almost surely, 2^18529916 is an apocalyptic number.

It is an amenable number.

18529916 is a deficient number, since it is larger than the sum of its proper divisors (14288716).

18529916 is a wasteful number, since it uses less digits than its factorization.

18529916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55900 (or 55898 counting only the distinct ones).

The product of its digits is 38880, while the sum is 41.

The square root of 18529916 is about 4304.6388931013. The cubic root of 18529916 is about 264.6211079856.

The spelling of 18529916 in words is "eighteen million, five hundred twenty-nine thousand, nine hundred sixteen".