404340303 has 8 divisors (see below), whose sum is σ = 540011008. Its totient is φ = 269114904.

The previous prime is 404340289. The next prime is 404340331. The reversal of 404340303 is 303043404.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 404340303 - 2⁸ = 404340047 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 404340303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404340353) 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, 109201 + ... + 112842.

It is an arithmetic number, because the mean of its divisors is an integer number (67501376).

Almost surely, 2^404340303 is an apocalyptic number.

404340303 is a deficient number, since it is larger than the sum of its proper divisors (135670705).

404340303 is a wasteful number, since it uses less digits than its factorization.

404340303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222653.

The product of its (nonzero) digits is 1728, while the sum is 21.

The square root of 404340303 is about 20108.2148138516. The cubic root of 404340303 is about 739.4616872675.

Adding to 404340303 its reverse (303043404), we get a palindrome (707383707).

The spelling of 404340303 in words is "four hundred four million, three hundred forty thousand, three hundred three".