18441198 has 12 divisors (see below), whose sum is σ = 39955968. Its totient is φ = 6147060.

The previous prime is 18441169. The next prime is 18441233. The reversal of 18441198 is 89114481.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 512238 + ... + 512273.

It is an arithmetic number, because the mean of its divisors is an integer number (3329664).

Almost surely, 2^18441198 is an apocalyptic number.

18441198 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

18441198 is an abundant number, since it is smaller than the sum of its proper divisors (21514770).

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

18441198 is a wasteful number, since it uses less digits than its factorization.

18441198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1024519 (or 1024516 counting only the distinct ones).

The product of its digits is 9216, while the sum is 36.

The square root of 18441198 is about 4294.3215995079. The cubic root of 18441198 is about 264.1981123136.

The spelling of 18441198 in words is "eighteen million, four hundred forty-one thousand, one hundred ninety-eight".