18098766 has 36 divisors (see below), whose sum is σ = 44934552. Its totient is φ = 5157432.

The previous prime is 18098747. The next prime is 18098771. The reversal of 18098766 is 66789081.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 47565 + ... + 47943.

It is an arithmetic number, because the mean of its divisors is an integer number (1248182).

Almost surely, 2^18098766 is an apocalyptic number.

18098766 is an abundant number, since it is smaller than the sum of its proper divisors (26835786).

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

18098766 is an equidigital number, since it uses as much as digits as its factorization.

18098766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 773 (or 391 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 18098766 is about 4254.2644487620. The cubic root of 18098766 is about 262.5525989835.

The spelling of 18098766 in words is "eighteen million, ninety-eight thousand, seven hundred sixty-six".