289165394 has 8 divisors (see below), whose sum is σ = 495712128. Its totient is φ = 123928020.

The previous prime is 289165391. The next prime is 289165441. The reversal of 289165394 is 493561982.

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

It is not an unprimeable number, because it can be changed into a prime (289165391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10327322 + ... + 10327349.

It is an arithmetic number, because the mean of its divisors is an integer number (61964016).

Almost surely, 2^289165394 is an apocalyptic number.

289165394 is a deficient number, since it is larger than the sum of its proper divisors (206546734).

289165394 is a wasteful number, since it uses less digits than its factorization.

289165394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20654680.

The product of its digits is 466560, while the sum is 47.

The square root of 289165394 is about 17004.8638336213. The cubic root of 289165394 is about 661.2750024315.

The spelling of 289165394 in words is "two hundred eighty-nine million, one hundred sixty-five thousand, three hundred ninety-four".