339920 has 40 divisors (see below), whose sum is σ = 904704. Its totient is φ = 116352.

The previous prime is 339907. The next prime is 339943. The reversal of 339920 is 29933.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 339920.

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 339920.

It is an unprimeable number.

339920 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 257 + ... + 863.

2³³⁹⁹²⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 339920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (452352).

339920 is an abundant number, since it is smaller than the sum of its proper divisors (564784).

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

339920 is a wasteful number, since it uses less digits than its factorization.

339920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 627 (or 621 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 26.

The square root of 339920 is about 583.0265860147. The cubic root of 339920 is about 69.7898458969.

The spelling of 339920 in words is "three hundred thirty-nine thousand, nine hundred twenty".