342345 has 16 divisors (see below), whose sum is σ = 567360. Its totient is φ = 176064.

The previous prime is 342343. The next prime is 342347. The reversal of 342345 is 543243.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (342343) and next prime (342347).

It is not a de Polignac number, because 342345 - 2¹ = 342343 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 3 + 4² + 3² + 2¹¹ + 4⁹ + 5⁷ .

It is not an unprimeable number, because it can be changed into a prime (342341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42 + ... + 828.

It is an arithmetic number, because the mean of its divisors is an integer number (35460).

2³⁴²³⁴⁵ is an apocalyptic number.

It is an amenable number.

342345 is a deficient number, since it is larger than the sum of its proper divisors (225015).

342345 is a wasteful number, since it uses less digits than its factorization.

342345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 824.

The product of its digits is 1440, while the sum is 21.

The square root of 342345 is about 585.1025551132. The cubic root of 342345 is about 69.9554137839.

Adding to 342345 its reverse (543243), we get a palindrome (885588).

The spelling of 342345 in words is "three hundred forty-two thousand, three hundred forty-five".