18798016 has 28 divisors (see below), whose sum is σ = 37444680. Its totient is φ = 9363200.

The previous prime is 18797983. The next prime is 18798037. The reversal of 18798016 is 61089781.

It is a self number, because there is not a number n which added to its sum of digits gives 18798016.

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, 26466 + ... + 27166.

It is an arithmetic number, because the mean of its divisors is an integer number (1337310).

Almost surely, 2^18798016 is an apocalyptic number.

18798016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18798016 is a deficient number, since it is larger than the sum of its proper divisors (18646664).

18798016 is an equidigital number, since it uses as much as digits as its factorization.

18798016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1132 (or 1122 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 40.

The square root of 18798016 is about 4335.6678839597. The cubic root of 18798016 is about 265.8912250521.

The spelling of 18798016 in words is "eighteen million, seven hundred ninety-eight thousand, sixteen".