18413313 has 8 divisors (see below), whose sum is σ = 25014528. Its totient is φ = 12043824.

The previous prime is 18413293. The next prime is 18413323. The reversal of 18413313 is 31331481.

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

It is not a de Polignac number, because 18413313 - 2⁵ = 18413281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18413323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57745 + ... + 58062.

It is an arithmetic number, because the mean of its divisors is an integer number (3126816).

Almost surely, 2^18413313 is an apocalyptic number.

It is an amenable number.

18413313 is a deficient number, since it is larger than the sum of its proper divisors (6601215).

18413313 is a wasteful number, since it uses less digits than its factorization.

18413313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115863.

The product of its digits is 864, while the sum is 24.

The square root of 18413313 is about 4291.0736418757. The cubic root of 18413313 is about 264.0648801742.

Adding to 18413313 its reverse (31331481), we get a palindrome (49744794).

The spelling of 18413313 in words is "eighteen million, four hundred thirteen thousand, three hundred thirteen".