18079385 has 8 divisors (see below), whose sum is σ = 21723336. Its totient is φ = 14444800.

The previous prime is 18079379. The next prime is 18079427. The reversal of 18079385 is 58397081.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4734976 + 13344409 = 2176^2 + 3653^2 .

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

It is not a de Polignac number, because 18079385 - 2⁸ = 18079129 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3035 + ... + 6735.

It is an arithmetic number, because the mean of its divisors is an integer number (2715417).

Almost surely, 2^18079385 is an apocalyptic number.

It is an amenable number.

18079385 is a deficient number, since it is larger than the sum of its proper divisors (3643951).

18079385 is an equidigital number, since it uses as much as digits as its factorization.

18079385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4683.

The product of its (nonzero) digits is 60480, while the sum is 41.

The square root of 18079385 is about 4251.9860065621. The cubic root of 18079385 is about 262.4588476683.

The spelling of 18079385 in words is "eighteen million, seventy-nine thousand, three hundred eighty-five".