18084098 has 18 divisors (see below), whose sum is σ = 28321353. Its totient is φ = 8660160.

The previous prime is 18084097. The next prime is 18084103. The reversal of 18084098 is 89048081.

It can be written as a sum of positive squares in 2 ways, for example, as 18037009 + 47089 = 4247^2 + 217^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=3007.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18084091) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 186386 + ... + 186482.

Almost surely, 2^18084098 is an apocalyptic number.

18084098 is a deficient number, since it is larger than the sum of its proper divisors (10237255).

18084098 is an frugal number, since it uses more digits than its factorization.

18084098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258 (or 130 counting only the distinct ones).

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

The square root of 18084098 is about 4252.5401820559. The cubic root of 18084098 is about 262.4816519299.

Multiplying 18084098 by its product of nonzero digits (18432), we get a square (333326094336 = 577344²).

The spelling of 18084098 in words is "eighteen million, eighty-four thousand, ninety-eight".