842403 has 8 divisors (see below), whose sum is σ = 1182400. Its totient is φ = 532008.

The previous prime is 842399. The next prime is 842407. The reversal of 842403 is 304248.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (842399) and next prime (842407).

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

It is not a de Polignac number, because 842403 - 2² = 842399 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 842403.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 842403.

It is not an unprimeable number, because it can be changed into a prime (842407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7333 + ... + 7446.

It is an arithmetic number, because the mean of its divisors is an integer number (147800).

2⁸⁴²⁴⁰³ is an apocalyptic number.

842403 is a deficient number, since it is larger than the sum of its proper divisors (339997).

842403 is a wasteful number, since it uses less digits than its factorization.

842403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14801.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 842403 is about 917.8251467464. The cubic root of 842403 is about 94.4437671104.

The spelling of 842403 in words is "eight hundred forty-two thousand, four hundred three".