289330 has 8 divisors (see below), whose sum is σ = 520812. Its totient is φ = 115728.

The previous prime is 289319. The next prime is 289343. The reversal of 289330 is 33982.

289330 = T₁₆₀ + T₁₆₁ + ... + T₁₇₉.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 288369 + 961 = 537^2 + 31^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 289295 and 289304.

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, 14457 + ... + 14476.

2²⁸⁹³³⁰ is an apocalyptic number.

289330 is a deficient number, since it is larger than the sum of its proper divisors (231482).

289330 is a wasteful number, since it uses less digits than its factorization.

289330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28940.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 289330 is about 537.8940416104. The cubic root of 289330 is about 66.1400454494.

The spelling of 289330 in words is "two hundred eighty-nine thousand, three hundred thirty".