18014398 has 16 divisors (see below), whose sum is σ = 27676800. Its totient is φ = 8791200.

The previous prime is 18014393. The next prime is 18014417. The reversal of 18014398 is 89341081.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18014393) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17683 + ... + 18673.

It is an arithmetic number, because the mean of its divisors is an integer number (1729800).

Almost surely, 2^18014398 is an apocalyptic number.

18014398 is a deficient number, since it is larger than the sum of its proper divisors (9662402).

18014398 is a wasteful number, since it uses less digits than its factorization.

18014398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1203.

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 18014398 is about 4244.3371685105. The cubic root of 18014398 is about 262.1439975287.

The spelling of 18014398 in words is "eighteen million, fourteen thousand, three hundred ninety-eight".