339640 has 32 divisors (see below), whose sum is σ = 874080. Its totient is φ = 116352.

The previous prime is 339637. The next prime is 339649. The reversal of 339640 is 46933.

It is a Smith number, since the sum of its digits (25) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (339649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 327 + ... + 886.

It is an arithmetic number, because the mean of its divisors is an integer number (27315).

2³³⁹⁶⁴⁰ is an apocalyptic number.

It is an amenable number.

339640 is an abundant number, since it is smaller than the sum of its proper divisors (534440).

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

339640 is a wasteful number, since it uses less digits than its factorization.

339640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1231 (or 1227 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 339640 is about 582.7864102740. The cubic root of 339640 is about 69.7706781272.

It can be divided in two parts, 339 and 640, that added together give a palindrome (979).

The spelling of 339640 in words is "three hundred thirty-nine thousand, six hundred forty".