18326316 has 24 divisors (see below), whose sum is σ = 43072960. Its totient is φ = 6064272.

The previous prime is 18326311. The next prime is 18326333. The reversal of 18326316 is 61362381.

It is not an unprimeable number, because it can be changed into a prime (18326311) 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, 3826 + ... + 7161.

Almost surely, 2^18326316 is an apocalyptic number.

It is an amenable number.

18326316 is an abundant number, since it is smaller than the sum of its proper divisors (24746644).

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

18326316 is a wasteful number, since it uses less digits than its factorization.

18326316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11133 (or 11131 counting only the distinct ones).

The product of its digits is 5184, while the sum is 30.

The square root of 18326316 is about 4280.9246664710. The cubic root of 18326316 is about 263.6483495289.

Adding to 18326316 its reverse (61362381), we get a palindrome (79688697).

The spelling of 18326316 in words is "eighteen million, three hundred twenty-six thousand, three hundred sixteen".