18098514 has 48 divisors (see below), whose sum is σ = 45077760. Its totient is φ = 5140800.

The previous prime is 18098501. The next prime is 18098519. The reversal of 18098514 is 41589081.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (18098519) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29814 + ... + 30414.

It is an arithmetic number, because the mean of its divisors is an integer number (939120).

Almost surely, 2^18098514 is an apocalyptic number.

18098514 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 18098514, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22538880).

18098514 is an abundant number, since it is smaller than the sum of its proper divisors (26979246).

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

18098514 is a wasteful number, since it uses less digits than its factorization.

18098514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855 (or 852 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 36.

The square root of 18098514 is about 4254.2348313181. The cubic root of 18098514 is about 262.5513804186.

The spelling of 18098514 in words is "eighteen million, ninety-eight thousand, five hundred fourteen".