289490 has 8 divisors (see below), whose sum is σ = 521100. Its totient is φ = 115792.

The previous prime is 289489. The next prime is 289511. The reversal of 289490 is 94982.

It can be written as a sum of positive squares in 2 ways, for example, as 267289 + 22201 = 517^2 + 149^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14465 + ... + 14484.

2²⁸⁹⁴⁹⁰ is an apocalyptic number.

289490 is a deficient number, since it is larger than the sum of its proper divisors (231610).

289490 is a wasteful number, since it uses less digits than its factorization.

289490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28956.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 289490 is about 538.0427492310. The cubic root of 289490 is about 66.1522350567.

The spelling of 289490 in words is "two hundred eighty-nine thousand, four hundred ninety".