342581 has 8 divisors (see below), whose sum is σ = 363264. Its totient is φ = 322560.

The previous prime is 342569. The next prime is 342593. The reversal of 342581 is 185243.

342581 is nontrivially palindromic in base 16.

It is an interprime number because it is at equal distance from previous prime (342569) and next prime (342593).

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

It is a cyclic number.

It is not a de Polignac number, because 342581 - 2¹⁰ = 341557 is a prime.

It is a super-2 number, since 2×342581² = 234723483122, which contains 22 as substring.

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 342581.

It is not an unprimeable number, because it can be changed into a prime (342521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1205 + ... + 1461.

It is an arithmetic number, because the mean of its divisors is an integer number (45408).

2³⁴²⁵⁸¹ is an apocalyptic number.

342581 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

342581 is a deficient number, since it is larger than the sum of its proper divisors (20683).

342581 is a wasteful number, since it uses less digits than its factorization.

342581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331.

The product of its digits is 960, while the sum is 23.

The square root of 342581 is about 585.3041944152. The cubic root of 342581 is about 69.9714849844.

The spelling of 342581 in words is "three hundred forty-two thousand, five hundred eighty-one".