289342 has 4 divisors (see below), whose sum is σ = 434016. Its totient is φ = 144670.

The previous prime is 289319. The next prime is 289343. The reversal of 289342 is 243982.

289342 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 289342.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72334 + ... + 72337.

It is an arithmetic number, because the mean of its divisors is an integer number (108504).

2²⁸⁹³⁴² is an apocalyptic number.

289342 is a deficient number, since it is larger than the sum of its proper divisors (144674).

289342 is a wasteful number, since it uses less digits than its factorization.

289342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144673.

The product of its digits is 3456, while the sum is 28.

The square root of 289342 is about 537.9051961080. The cubic root of 289342 is about 66.1409598258.

The spelling of 289342 in words is "two hundred eighty-nine thousand, three hundred forty-two".