18130604 has 12 divisors (see below), whose sum is σ = 31957800. Its totient is φ = 8999808.

The previous prime is 18130591. The next prime is 18130621. The reversal of 18130604 is 40603181.

It is a self number, because there is not a number n which added to its sum of digits gives 18130604.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15749 + ... + 16860.

It is an arithmetic number, because the mean of its divisors is an integer number (2663150).

Almost surely, 2^18130604 is an apocalyptic number.

It is an amenable number.

18130604 is a deficient number, since it is larger than the sum of its proper divisors (13827196).

18130604 is a wasteful number, since it uses less digits than its factorization.

18130604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32752 (or 32750 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 18130604 is about 4258.0046970383. The cubic root of 18130604 is about 262.7064631168.

Adding to 18130604 its reverse (40603181), we get a palindrome (58733785).

The spelling of 18130604 in words is "eighteen million, one hundred thirty thousand, six hundred four".