304223432 has 32 divisors (see below), whose sum is σ = 608067000. Its totient is φ = 142193664.

The previous prime is 304223431. The next prime is 304223443. The reversal of 304223432 is 234322403.

It can be written as a sum of positive squares in 4 ways, for example, as 269813476 + 34409956 = 16426^2 + 5866^2 .

It is a junction number, because it is equal to n+sod(n) for n = 304223398 and 304223407.

It is not an unprimeable number, because it can be changed into a prime (304223431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12758 + ... + 27770.

Almost surely, 2^304223432 is an apocalyptic number.

It is an amenable number.

304223432 is a deficient number, since it is larger than the sum of its proper divisors (303843568).

304223432 is a wasteful number, since it uses less digits than its factorization.

304223432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15185 (or 15181 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 23.

The square root of 304223432 is about 17442.0019493176. The cubic root of 304223432 is about 672.5597719154.

Adding to 304223432 its reverse (234322403), we get a palindrome (538545835).

The spelling of 304223432 in words is "three hundred four million, two hundred twenty-three thousand, four hundred thirty-two".