18072579 has 8 divisors (see below), whose sum is σ = 27539200. Its totient is φ = 10327176.

The previous prime is 18072569. The next prime is 18072661. The reversal of 18072579 is 97527081.

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

It is not a de Polignac number, because 18072579 - 2⁸ = 18072323 is a prime.

It is a super-2 number, since 2×18072579² = 653236223422482, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18072569) 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, 430279 + ... + 430320.

It is an arithmetic number, because the mean of its divisors is an integer number (3442400).

Almost surely, 2^18072579 is an apocalyptic number.

18072579 is a deficient number, since it is larger than the sum of its proper divisors (9466621).

18072579 is an equidigital number, since it uses as much as digits as its factorization.

18072579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 860609.

The product of its (nonzero) digits is 35280, while the sum is 39.

The square root of 18072579 is about 4251.1855993358. The cubic root of 18072579 is about 262.4259092485.

The spelling of 18072579 in words is "eighteen million, seventy-two thousand, five hundred seventy-nine".