342658 has 4 divisors (see below), whose sum is σ = 513990. Its totient is φ = 171328.

The previous prime is 342653. The next prime is 342659. The reversal of 342658 is 856243.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 856243 = 449 ⋅1907.

It can be written as a sum of positive squares in only one way, i.e., 288369 + 54289 = 537^2 + 233^2 .

It is a d-powerful number, because it can be written as 3¹⁰ + 4 + 6⁷ + 2⁵ + 5⁵ + 8³ .

It is not an unprimeable number, because it can be changed into a prime (342653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85663 + ... + 85666.

2³⁴²⁶⁵⁸ is an apocalyptic number.

342658 is a deficient number, since it is larger than the sum of its proper divisors (171332).

342658 is a wasteful number, since it uses less digits than its factorization.

342658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171331.

The product of its digits is 5760, while the sum is 28.

The square root of 342658 is about 585.3699684815. The cubic root of 342658 is about 69.9767269571.

It can be divided in two parts, 342 and 658, that added together give a cube (1000 = 10³).

The spelling of 342658 in words is "three hundred forty-two thousand, six hundred fifty-eight".