18905104 has 15 divisors (see below), whose sum is σ = 36662367. Its totient is φ = 9443856.

The previous prime is 18905101. The next prime is 18905111. The reversal of 18905104 is 40150981.

It is a happy number.

The square root of 18905104 is 4348.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18905101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 16849 + ... + 17935.

Almost surely, 2^18905104 is an apocalyptic number.

18905104 is the 4348-th square number.

It is an amenable number.

18905104 is a deficient number, since it is larger than the sum of its proper divisors (17757263).

18905104 is an frugal number, since it uses more digits than its factorization.

18905104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2182 (or 1089 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 28.

The cubic root of 18905104 is about 266.3951764706.

The spelling of 18905104 in words is "eighteen million, nine hundred five thousand, one hundred four".