404031304 has 32 divisors (see below), whose sum is σ = 775218240. Its totient is φ = 197352000.

The previous prime is 404031289. The next prime is 404031319. The reversal of 404031304 is 403130404.

It is an interprime number because it is at equal distance from previous prime (404031289) and next prime (404031319).

It is a super-2 number, since 2×404031304² = 326482589223880832, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70947 + ... + 76429.

It is an arithmetic number, because the mean of its divisors is an integer number (24225570).

Almost surely, 2^404031304 is an apocalyptic number.

It is an amenable number.

404031304 is a deficient number, since it is larger than the sum of its proper divisors (371186936).

404031304 is a wasteful number, since it uses less digits than its factorization.

404031304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5701 (or 5697 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 404031304 is about 20100.5299432627. The cubic root of 404031304 is about 739.2732724182.

Adding to 404031304 its reverse (403130404), we get a palindrome (807161708).

It can be divided in two parts, 4040 and 31304, that added together give a square (35344 = 188²).

The spelling of 404031304 in words is "four hundred four million, thirty-one thousand, three hundred four".