340942 has 20 divisors (see below), whose sum is σ = 605016. Its totient is φ = 144060.

The previous prime is 340939. The next prime is 340957. The reversal of 340942 is 249043.

It is a d-powerful number, because it can be written as 3⁹ + 4³ + 9⁵ + 0 + 4⁹ + 2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 4767 + ... + 4837.

2³⁴⁰⁹⁴² is an apocalyptic number.

340942 is a deficient number, since it is larger than the sum of its proper divisors (264074).

340942 is an frugal number, since it uses more digits than its factorization.

340942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101 (or 80 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 340942 is about 583.9023891028. The cubic root of 340942 is about 69.8597190629.

Adding to 340942 its reverse (249043), we get a palindrome (589985).

The spelling of 340942 in words is "three hundred forty thousand, nine hundred forty-two".