342431 has 4 divisors (see below), whose sum is σ = 362592. Its totient is φ = 322272.

The previous prime is 342421. The next prime is 342449. The reversal of 342431 is 134243.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 342431 - 2¹⁸ = 80287 is a prime.

It is a super-2 number, since 2×342431² = 234517979522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 20143 = 342431 / (3 + 4 + 2 + 4 + 3 + 1).

It is a Duffinian number.

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 342431.

It is not an unprimeable number, because it can be changed into a prime (342421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10055 + ... + 10088.

It is an arithmetic number, because the mean of its divisors is an integer number (90648).

2³⁴²⁴³¹ is an apocalyptic number.

342431 is a deficient number, since it is larger than the sum of its proper divisors (20161).

342431 is a wasteful number, since it uses less digits than its factorization.

342431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20160.

The product of its digits is 288, while the sum is 17.

The square root of 342431 is about 585.1760418883. The cubic root of 342431 is about 69.9612710934.

Adding to 342431 its reverse (134243), we get a palindrome (476674).

The spelling of 342431 in words is "three hundred forty-two thousand, four hundred thirty-one".