18068413 has 8 divisors (see below), whose sum is σ = 20192256. Its totient is φ = 16024800.

The previous prime is 18068377. The next prime is 18068419. The reversal of 18068413 is 31486081.

18068413 = T₁₈₀₇ + T₁₈₀₈ + ... + T₁₈₁₇.

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

It is a de Polignac number, because none of the positive numbers 2^k-18068413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18068419) 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, 19581 + ... + 20482.

It is an arithmetic number, because the mean of its divisors is an integer number (2524032).

Almost surely, 2^18068413 is an apocalyptic number.

It is an amenable number.

18068413 is a deficient number, since it is larger than the sum of its proper divisors (2123843).

18068413 is a wasteful number, since it uses less digits than its factorization.

18068413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40115.

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 18068413 is about 4250.6955901358. The cubic root of 18068413 is about 262.4057433321.

It can be divided in two parts, 18068 and 413, that added together give a palindrome (18481).

The spelling of 18068413 in words is "eighteen million, sixty-eight thousand, four hundred thirteen".