340489 has 8 divisors (see below), whose sum is σ = 360000. Its totient is φ = 321552.

The previous prime is 340481. The next prime is 340519. The reversal of 340489 is 984043.

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

It is not a de Polignac number, because 340489 - 2³ = 340481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (340481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1612 + ... + 1810.

It is an arithmetic number, because the mean of its divisors is an integer number (45000).

2³⁴⁰⁴⁸⁹ is an apocalyptic number.

It is an amenable number.

340489 is a deficient number, since it is larger than the sum of its proper divisors (19511).

340489 is a wasteful number, since it uses less digits than its factorization.

340489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287.

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

The square root of 340489 is about 583.5143528655. The cubic root of 340489 is about 69.8287651382.

The spelling of 340489 in words is "three hundred forty thousand, four hundred eighty-nine".