403204323 has 4 divisors (see below), whose sum is σ = 537605768. Its totient is φ = 268802880.

The previous prime is 403204309. The next prime is 403204357. The reversal of 403204323 is 323402304.

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

It is not a de Polignac number, because 403204323 - 2¹⁰ = 403203299 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 403204323.

It is not an unprimeable number, because it can be changed into a prime (403204303) 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 3 ways as a sum of consecutive naturals, for example, 67200718 + ... + 67200723.

It is an arithmetic number, because the mean of its divisors is an integer number (134401442).

Almost surely, 2^403204323 is an apocalyptic number.

403204323 is a deficient number, since it is larger than the sum of its proper divisors (134401445).

403204323 is a wasteful number, since it uses less digits than its factorization.

403204323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134401444.

The product of its (nonzero) digits is 1728, while the sum is 21.

The square root of 403204323 is about 20079.9482818059. The cubic root of 403204323 is about 738.7685404516.

Adding to 403204323 its reverse (323402304), we get a palindrome (726606627).

The spelling of 403204323 in words is "four hundred three million, two hundred four thousand, three hundred twenty-three".