339440 has 20 divisors (see below), whose sum is σ = 789384. Its totient is φ = 135744.

The previous prime is 339433. The next prime is 339467. The reversal of 339440 is 44933.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 339440.

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, 2042 + ... + 2201.

2³³⁹⁴⁴⁰ is an apocalyptic number.

It is an amenable number.

339440 is an abundant number, since it is smaller than the sum of its proper divisors (449944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

339440 is a wasteful number, since it uses less digits than its factorization.

339440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4256 (or 4250 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 339440 is about 582.6147955553. The cubic root of 339440 is about 69.7569804125.

The spelling of 339440 in words is "three hundred thirty-nine thousand, four hundred forty".