18479289 has 8 divisors (see below), whose sum is σ = 26088480. Its totient is φ = 11594816.

The previous prime is 18479269. The next prime is 18479291. The reversal of 18479289 is 98297481.

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

It is not a de Polignac number, because 18479289 - 2¹⁹ = 17955001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18479249) 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, 181119 + ... + 181220.

It is an arithmetic number, because the mean of its divisors is an integer number (3261060).

Almost surely, 2^18479289 is an apocalyptic number.

It is an amenable number.

18479289 is a deficient number, since it is larger than the sum of its proper divisors (7609191).

18479289 is a wasteful number, since it uses less digits than its factorization.

18479289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362359.

The product of its digits is 290304, while the sum is 48.

The square root of 18479289 is about 4298.7543544613. The cubic root of 18479289 is about 264.3798909836.

The spelling of 18479289 in words is "eighteen million, four hundred seventy-nine thousand, two hundred eighty-nine".