342403 has 4 divisors (see below), whose sum is σ = 354240. Its totient is φ = 330568.

The previous prime is 342389. The next prime is 342413. The reversal of 342403 is 304243.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 304243 = 367 ⋅829.

It is a cyclic number.

It is not a de Polignac number, because 342403 - 2⁵ = 342371 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 342403.

It is not an unprimeable number, because it can be changed into a prime (342413) 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, 5875 + ... + 5932.

It is an arithmetic number, because the mean of its divisors is an integer number (88560).

2³⁴²⁴⁰³ is an apocalyptic number.

342403 is a deficient number, since it is larger than the sum of its proper divisors (11837).

342403 is a wasteful number, since it uses less digits than its factorization.

342403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11836.

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 342403 is about 585.1521169747. The cubic root of 342403 is about 69.9593641701.

Adding to 342403 its reverse (304243), we get a palindrome (646646).

It can be divided in two parts, 34240 and 3, that added together give a palindrome (34243).

The spelling of 342403 in words is "three hundred forty-two thousand, four hundred three", and thus it is an iban number.