18398006 has 16 divisors (see below), whose sum is σ = 31145040. Its totient is φ = 8074080.

The previous prime is 18397993. The next prime is 18398011. The reversal of 18398006 is 60089381.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13781 + ... + 15056.

It is an arithmetic number, because the mean of its divisors is an integer number (1946565).

Almost surely, 2^18398006 is an apocalyptic number.

18398006 is a deficient number, since it is larger than the sum of its proper divisors (12747034).

18398006 is a wasteful number, since it uses less digits than its factorization.

18398006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28879.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 18398006 is about 4289.2896847846. The cubic root of 18398006 is about 263.9916874487.

It can be divided in two parts, 183 and 98006, that added together give a palindrome (98189).

The spelling of 18398006 in words is "eighteen million, three hundred ninety-eight thousand, six".