342538 has 16 divisors (see below), whose sum is σ = 601920. Its totient is φ = 143136.

The previous prime is 342527. The next prime is 342547. The reversal of 342538 is 835243.

It is an unprimeable number.

342538 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 in 7 ways as a sum of consecutive naturals, for example, 318 + ... + 886.

It is an arithmetic number, because the mean of its divisors is an integer number (37620).

2³⁴²⁵³⁸ is an apocalyptic number.

342538 is a deficient number, since it is larger than the sum of its proper divisors (259382).

342538 is a wasteful number, since it uses less digits than its factorization.

342538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621.

The product of its digits is 2880, while the sum is 25.

The square root of 342538 is about 585.2674602265. The cubic root of 342538 is about 69.9685573072.

The spelling of 342538 in words is "three hundred forty-two thousand, five hundred thirty-eight".