404311330 has 16 divisors (see below), whose sum is σ = 752856120. Its totient is φ = 156147712.

The previous prime is 404311309. The next prime is 404311333. The reversal of 404311330 is 33113404.

It can be written as a sum of positive squares in 4 ways, for example, as 209178369 + 195132961 = 14463^2 + 13969^2 .

It is a junction number, because it is equal to n+sod(n) for n = 404311298 and 404311307.

It is not an unprimeable number, because it can be changed into a prime (404311333) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 696799 + ... + 697378.

Almost surely, 2^404311330 is an apocalyptic number.

404311330 is a deficient number, since it is larger than the sum of its proper divisors (348544790).

404311330 is a wasteful number, since it uses less digits than its factorization.

404311330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1394213.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 404311330 is about 20107.4943739890. The cubic root of 404311330 is about 739.4440248059. Note that the first 3 decimals are identical.

Adding to 404311330 its reverse (33113404), we get a palindrome (437424734).

The spelling of 404311330 in words is "four hundred four million, three hundred eleven thousand, three hundred thirty".