403423404 has 48 divisors (see below), whose sum is σ = 995753472. Its totient is φ = 126859392.

The previous prime is 403423399. The next prime is 403423421. The reversal of 403423404 is 404324304.

It is a happy number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 10137 + ... + 30159.

It is an arithmetic number, because the mean of its divisors is an integer number (20744864).

Almost surely, 2^403423404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 403423404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (497876736).

403423404 is an abundant number, since it is smaller than the sum of its proper divisors (592330068).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

403423404 is a wasteful number, since it uses less digits than its factorization.

403423404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20126 (or 20124 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 24.

The square root of 403423404 is about 20085.4027592179. The cubic root of 403423404 is about 738.9023194783.

Adding to 403423404 its reverse (404324304), we get a palindrome (807747708).

The spelling of 403423404 in words is "four hundred three million, four hundred twenty-three thousand, four hundred four".