404403413 has 8 divisors (see below), whose sum is σ = 407610840. Its totient is φ = 401207040.

The previous prime is 404403367. The next prime is 404403427. The reversal of 404403413 is 314304404.

It can be written as a sum of positive squares in 4 ways, for example, as 50098084 + 354305329 = 7078^2 + 18823^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 404403413 - 2²² = 400209109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404403443) 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, 80273 + ... + 85161.

It is an arithmetic number, because the mean of its divisors is an integer number (50951355).

Almost surely, 2^404403413 is an apocalyptic number.

It is an amenable number.

404403413 is a deficient number, since it is larger than the sum of its proper divisors (3207427).

404403413 is a wasteful number, since it uses less digits than its factorization.

404403413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5527.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 404403413 is about 20109.7840117690. The cubic root of 404403413 is about 739.5001573375.

Adding to 404403413 its reverse (314304404), we get a palindrome (718707817).

Subtracting from 404403413 its reverse (314304404), we obtain a palindrome (90099009).

The spelling of 404403413 in words is "four hundred four million, four hundred three thousand, four hundred thirteen".