340392 has 32 divisors (see below), whose sum is σ = 917280. Its totient is φ = 104640.

The previous prime is 340387. The next prime is 340393. The reversal of 340392 is 293043.

It is a plaindrome in base 15.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 340392.

It is not an unprimeable number, because it can be changed into a prime (340393) by changing a digit.

340392 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, 234 + ... + 857.

It is an arithmetic number, because the mean of its divisors is an integer number (28665).

2³⁴⁰³⁹² is an apocalyptic number.

It is an amenable number.

340392 is an abundant number, since it is smaller than the sum of its proper divisors (576888).

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

340392 is a wasteful number, since it uses less digits than its factorization.

340392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1113 (or 1109 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 340392 is about 583.4312298806. The cubic root of 340392 is about 69.8221334668.

The spelling of 340392 in words is "three hundred forty thousand, three hundred ninety-two".