402304223 has 4 divisors (see below), whose sum is σ = 404061240. Its totient is φ = 400547208.

The previous prime is 402304213. The next prime is 402304249. The reversal of 402304223 is 322403204.

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 402304223 - 2⁴ = 402304207 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 402304195 and 402304204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402304213) 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, 878165 + ... + 878622.

It is an arithmetic number, because the mean of its divisors is an integer number (101015310).

Almost surely, 2^402304223 is an apocalyptic number.

402304223 is a deficient number, since it is larger than the sum of its proper divisors (1757017).

402304223 is a wasteful number, since it uses less digits than its factorization.

402304223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1757016.

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 402304223 is about 20057.5228530345. The cubic root of 402304223 is about 738.2183967192.

Adding to 402304223 its reverse (322403204), we get a palindrome (724707427).

The spelling of 402304223 in words is "four hundred two million, three hundred four thousand, two hundred twenty-three".