18300304 has 20 divisors (see below), whose sum is σ = 38680560. Its totient is φ = 8318240.

The previous prime is 18300301. The next prime is 18300353. The reversal of 18300304 is 40300381.

It is a super-2 number, since 2×18300304² = 669802252984832, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18300301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51814 + ... + 52165.

It is an arithmetic number, because the mean of its divisors is an integer number (1934028).

Almost surely, 2^18300304 is an apocalyptic number.

It is an amenable number.

18300304 is an abundant number, since it is smaller than the sum of its proper divisors (20380256).

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

18300304 is a wasteful number, since it uses less digits than its factorization.

18300304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103998 (or 103992 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 18300304 is about 4277.8854589622. The cubic root of 18300304 is about 263.5235514309.

Adding to 18300304 its reverse (40300381), we get a palindrome (58600685).

The spelling of 18300304 in words is "eighteen million, three hundred thousand, three hundred four".