18245879 has 8 divisors (see below), whose sum is σ = 19356480. Its totient is φ = 17139456.

The previous prime is 18245867. The next prime is 18245881. The reversal of 18245879 is 97854281.

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

It is a cyclic number.

It is not a de Polignac number, because 18245879 - 2⁴ = 18245863 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 (18241879) 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, 17042 + ... + 18080.

It is an arithmetic number, because the mean of its divisors is an integer number (2419560).

Almost surely, 2^18245879 is an apocalyptic number.

18245879 is a deficient number, since it is larger than the sum of its proper divisors (1110601).

18245879 is a wasteful number, since it uses less digits than its factorization.

18245879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2089.

The product of its digits is 161280, while the sum is 44.

The square root of 18245879 is about 4271.5195188598. The cubic root of 18245879 is about 263.2620528466.

The spelling of 18245879 in words is "eighteen million, two hundred forty-five thousand, eight hundred seventy-nine".