342128 has 10 divisors (see below), whose sum is σ = 662904. Its totient is φ = 171056.

The previous prime is 342107. The next prime is 342131. The reversal of 342128 is 821243.

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 342128.

It is an unprimeable number.

342128 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 as a sum of consecutive naturals, namely, 10676 + ... + 10707.

2³⁴²¹²⁸ is an apocalyptic number.

It is an amenable number.

342128 is a deficient number, since it is larger than the sum of its proper divisors (320776).

342128 is a wasteful number, since it uses less digits than its factorization.

342128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21391 (or 21385 counting only the distinct ones).

The product of its digits is 384, while the sum is 20.

The square root of 342128 is about 584.9170881416. The cubic root of 342128 is about 69.9406299320.

The spelling of 342128 in words is "three hundred forty-two thousand, one hundred twenty-eight".