18424198 has 16 divisors (see below), whose sum is σ = 30030336. Its totient is φ = 8426880.

The previous prime is 18424181. The next prime is 18424201. The reversal of 18424198 is 89142481.

It is a nialpdrome in base 11.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 198 + ... + 6073.

It is an arithmetic number, because the mean of its divisors is an integer number (1876896).

Almost surely, 2^18424198 is an apocalyptic number.

18424198 is a deficient number, since it is larger than the sum of its proper divisors (11606138).

18424198 is a wasteful number, since it uses less digits than its factorization.

18424198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6399.

The product of its digits is 18432, while the sum is 37.

The square root of 18424198 is about 4292.3417850866. The cubic root of 18424198 is about 264.1169037656.

The spelling of 18424198 in words is "eighteen million, four hundred twenty-four thousand, one hundred ninety-eight".