402403304 has 16 divisors (see below), whose sum is σ = 780524100. Its totient is φ = 194263552.

The previous prime is 402403303. The next prime is 402403307. The reversal of 402403304 is 403304204.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 398800900 + 3602404 = 19970^2 + 1898^2 .

It is not an unprimeable number, because it can be changed into a prime (402403303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 867017 + ... + 867480.

Almost surely, 2^402403304 is an apocalyptic number.

It is an amenable number.

402403304 is a deficient number, since it is larger than the sum of its proper divisors (378120796).

402403304 is a wasteful number, since it uses less digits than its factorization.

402403304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1734532 (or 1734528 counting only the distinct ones).

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

The square root of 402403304 is about 20059.9926221322. The cubic root of 402403304 is about 738.2789954808.

Adding to 402403304 its reverse (403304204), we get a palindrome (805707508).

The spelling of 402403304 in words is "four hundred two million, four hundred three thousand, three hundred four".