342785 has 8 divisors (see below), whose sum is σ = 414720. Its totient is φ = 271984.

The previous prime is 342761. The next prime is 342791. The reversal of 342785 is 587243.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-342785 is a prime.

It is a super-3 number, since 3×342785³ = 120833312851759875, which contains 333 as substring.

It is a d-powerful number, because it can be written as 3¹⁰ + 4⁶ + 7⁵ + 2¹⁸ + 8² + 5⁴ .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 704 + ... + 1086.

It is an arithmetic number, because the mean of its divisors is an integer number (51840).

2³⁴²⁷⁸⁵ is an apocalyptic number.

It is an amenable number.

342785 is a deficient number, since it is larger than the sum of its proper divisors (71935).

342785 is a wasteful number, since it uses less digits than its factorization.

342785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567.

The product of its digits is 6720, while the sum is 29.

The square root of 342785 is about 585.4784368361. The cubic root of 342785 is about 69.9853710927.

The spelling of 342785 in words is "three hundred forty-two thousand, seven hundred eighty-five".