18235098 has 64 divisors (see below), whose sum is σ = 48768000. Its totient is φ = 4933872.

The previous prime is 18235097. The next prime is 18235109. The reversal of 18235098 is 89053281.

It is not an unprimeable number, because it can be changed into a prime (18235093) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5913 + ... + 8451.

It is an arithmetic number, because the mean of its divisors is an integer number (762000).

Almost surely, 2^18235098 is an apocalyptic number.

18235098 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 18235098, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24384000).

18235098 is an abundant number, since it is smaller than the sum of its proper divisors (30532902).

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

18235098 is a wasteful number, since it uses less digits than its factorization.

18235098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2576 (or 2570 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 18235098 is about 4270.2573692929. The cubic root of 18235098 is about 263.2101911379.

It can be divided in two parts, 182 and 35098, that multiplied together give a palindrome (6387836).

The spelling of 18235098 in words is "eighteen million, two hundred thirty-five thousand, ninety-eight".