342870 has 32 divisors (see below), whose sum is σ = 898560. Its totient is φ = 83040.

The previous prime is 342869. The next prime is 342871. The reversal of 342870 is 78243.

It is an interprime number because it is at equal distance from previous prime (342869) and next prime (342871).

It is a self number, because there is not a number n which added to its sum of digits gives 342870.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 342870.

It is not an unprimeable number, because it can be changed into a prime (342871) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 190 + ... + 849.

It is an arithmetic number, because the mean of its divisors is an integer number (28080).

2³⁴²⁸⁷⁰ is an apocalyptic number.

342870 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

342870 is an abundant number, since it is smaller than the sum of its proper divisors (555690).

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

342870 is a wasteful number, since it uses less digits than its factorization.

342870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1060.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 342870 is about 585.5510225420. The cubic root of 342870 is about 69.9911553451.

The spelling of 342870 in words is "three hundred forty-two thousand, eight hundred seventy".