18999114 has 8 divisors (see below), whose sum is σ = 37998240. Its totient is φ = 6333036.

The previous prime is 18999091. The next prime is 18999119. The reversal of 18999114 is 41199981.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

18999114 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (18999119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1583254 + ... + 1583265.

It is an arithmetic number, because the mean of its divisors is an integer number (4749780).

Almost surely, 2^18999114 is an apocalyptic number.

18999114 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

18999114 is a wasteful number, since it uses less digits than its factorization.

18999114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3166524.

The product of its digits is 23328, while the sum is 42.

The square root of 18999114 is about 4358.7973111857. The cubic root of 18999114 is about 266.8360170816.

The spelling of 18999114 in words is "eighteen million, nine hundred ninety-nine thousand, one hundred fourteen".