18098804 has 6 divisors (see below), whose sum is σ = 31672914. Its totient is φ = 9049400.

The previous prime is 18098797. The next prime is 18098819. The reversal of 18098804 is 40889081.

It can be written as a sum of positive squares in only one way, i.e., 14668900 + 3429904 = 3830^2 + 1852^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2262347 + ... + 2262354.

It is an arithmetic number, because the mean of its divisors is an integer number (5278819).

Almost surely, 2^18098804 is an apocalyptic number.

It is an amenable number.

18098804 is a deficient number, since it is larger than the sum of its proper divisors (13574110).

18098804 is a wasteful number, since it uses less digits than its factorization.

18098804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4524705 (or 4524703 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 38.

The square root of 18098804 is about 4254.2689148666. The cubic root of 18098804 is about 262.5527827343.

The spelling of 18098804 in words is "eighteen million, ninety-eight thousand, eight hundred four".