18010098 has 24 divisors (see below), whose sum is σ = 39276588. Its totient is φ = 5964192.

The previous prime is 18010093. The next prime is 18010099. The reversal of 18010098 is 89001081.

It can be written as a sum of positive squares in 2 ways, for example, as 17918289 + 91809 = 4233^2 + 303^2 .

It is not an unprimeable number, because it can be changed into a prime (18010093) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 361 + ... + 6012.

Almost surely, 2^18010098 is an apocalyptic number.

18010098 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

18010098 is an abundant number, since it is smaller than the sum of its proper divisors (21266490).

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

18010098 is a wasteful number, since it uses less digits than its factorization.

18010098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6538 (or 6535 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 27.

The square root of 18010098 is about 4243.8305809728. The cubic root of 18010098 is about 262.1231381233.

The spelling of 18010098 in words is "eighteen million, ten thousand, ninety-eight".