18204712 has 16 divisors (see below), whose sum is σ = 34221600. Its totient is φ = 9078960.

The previous prime is 18204709. The next prime is 18204727. The reversal of 18204712 is 21740281.

It is a happy 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, 637 + ... + 6067.

It is an arithmetic number, because the mean of its divisors is an integer number (2138850).

Almost surely, 2^18204712 is an apocalyptic number.

It is an amenable number.

18204712 is a deficient number, since it is larger than the sum of its proper divisors (16016888).

18204712 is a wasteful number, since it uses less digits than its factorization.

18204712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5856 (or 5852 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 18204712 is about 4266.6980207181. The cubic root of 18204712 is about 263.0639100227.

Adding to 18204712 its reverse (21740281), we get a palindrome (39944993).

The spelling of 18204712 in words is "eighteen million, two hundred four thousand, seven hundred twelve".