342438 has 8 divisors (see below), whose sum is σ = 684888. Its totient is φ = 114144.

The previous prime is 342421. The next prime is 342449. The reversal of 342438 is 834243.

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

342438 is an admirable number.

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, 28531 + ... + 28542.

It is an arithmetic number, because the mean of its divisors is an integer number (85611).

2³⁴²⁴³⁸ is an apocalyptic number.

342438 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

342438 is a wasteful number, since it uses less digits than its factorization.

342438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57078.

The product of its digits is 2304, while the sum is 24.

The square root of 342438 is about 585.1820229638. The cubic root of 342438 is about 69.9617478080.

It can be divided in two parts, 342 and 438, that added together give a triangular number (780 = T₃₉).

The spelling of 342438 in words is "three hundred forty-two thousand, four hundred thirty-eight".