18293313 has 8 divisors (see below), whose sum is σ = 24482176. Its totient is φ = 12150000.

The previous prime is 18293311. The next prime is 18293329. The reversal of 18293313 is 31339281.

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

It is not a de Polignac number, because 18293313 - 2¹ = 18293311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18293311) 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, 10438 + ... + 12063.

It is an arithmetic number, because the mean of its divisors is an integer number (3060272).

Almost surely, 2^18293313 is an apocalyptic number.

It is an amenable number.

18293313 is a deficient number, since it is larger than the sum of its proper divisors (6188863).

18293313 is a wasteful number, since it uses less digits than its factorization.

18293313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22775.

The product of its digits is 3888, while the sum is 30.

The square root of 18293313 is about 4277.0682716085. The cubic root of 18293313 is about 263.4899904622.

The spelling of 18293313 in words is "eighteen million, two hundred ninety-three thousand, three hundred thirteen".