18094312 has 8 divisors (see below), whose sum is σ = 33926850. Its totient is φ = 9047152.

The previous prime is 18094309. The next prime is 18094313. The reversal of 18094312 is 21349081.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 12013156 + 6081156 = 3466^2 + 2466^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (18094313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1130887 + ... + 1130902.

Almost surely, 2^18094312 is an apocalyptic number.

It is an amenable number.

18094312 is a deficient number, since it is larger than the sum of its proper divisors (15832538).

18094312 is a wasteful number, since it uses less digits than its factorization.

18094312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2261795 (or 2261791 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 18094312 is about 4253.7409418064. The cubic root of 18094312 is about 262.5310596657.

The spelling of 18094312 in words is "eighteen million, ninety-four thousand, three hundred twelve".