18098826 has 16 divisors (see below), whose sum is σ = 36306144. Its totient is φ = 6014864.

The previous prime is 18098819. The next prime is 18098827. The reversal of 18098826 is 62889081.

It is not an unprimeable number, because it can be changed into a prime (18098827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2265 + ... + 6428.

It is an arithmetic number, because the mean of its divisors is an integer number (2269134).

Almost surely, 2^18098826 is an apocalyptic number.

18098826 is an abundant number, since it is smaller than the sum of its proper divisors (18207318).

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

18098826 is a wasteful number, since it uses less digits than its factorization.

18098826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9045.

The product of its (nonzero) digits is 55296, while the sum is 42.

The square root of 18098826 is about 4254.2715005039. The cubic root of 18098826 is about 262.5528891163.

The spelling of 18098826 in words is "eighteen million, ninety-eight thousand, eight hundred twenty-six".