18304716 has 48 divisors (see below), whose sum is σ = 46103904. Its totient is φ = 5630976.

The previous prime is 18304709. The next prime is 18304717. The reversal of 18304716 is 61740381.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (18304717) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 9966 + ... + 11658.

It is an arithmetic number, because the mean of its divisors is an integer number (960498).

Almost surely, 2^18304716 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 18304716, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23051952).

18304716 is an abundant number, since it is smaller than the sum of its proper divisors (27799188).

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

18304716 is a wasteful number, since it uses less digits than its factorization.

18304716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1770 (or 1768 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 18304716 is about 4278.4011032160. The cubic root of 18304716 is about 263.5447272629.

The spelling of 18304716 in words is "eighteen million, three hundred four thousand, seven hundred sixteen".