342156 has 12 divisors (see below), whose sum is σ = 798392. Its totient is φ = 114048.

The previous prime is 342143. The next prime is 342179. The reversal of 342156 is 651243.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14245 + ... + 14268.

2³⁴²¹⁵⁶ is an apocalyptic number.

It is an amenable number.

342156 is an abundant number, since it is smaller than the sum of its proper divisors (456236).

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

342156 is a wasteful number, since it uses less digits than its factorization.

342156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28520 (or 28518 counting only the distinct ones).

The product of its digits is 720, while the sum is 21.

The square root of 342156 is about 584.9410226681. The cubic root of 342156 is about 69.9425378770.

Adding to 342156 its reverse (651243), we get a palindrome (993399).

The spelling of 342156 in words is "three hundred forty-two thousand, one hundred fifty-six".