18449298 has 24 divisors (see below), whose sum is σ = 45684288. Its totient is φ = 5271192.

The previous prime is 18449293. The next prime is 18449311. The reversal of 18449298 is 89294481.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (18449293) 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, 73086 + ... + 73337.

It is an arithmetic number, because the mean of its divisors is an integer number (1903512).

Almost surely, 2^18449298 is an apocalyptic number.

18449298 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

18449298 is an abundant number, since it is smaller than the sum of its proper divisors (27234990).

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

18449298 is a wasteful number, since it uses less digits than its factorization.

18449298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146438 (or 146435 counting only the distinct ones).

The product of its digits is 165888, while the sum is 45.

The square root of 18449298 is about 4295.2646018610. The cubic root of 18449298 is about 264.2367882439.

The spelling of 18449298 in words is "eighteen million, four hundred forty-nine thousand, two hundred ninety-eight".