404004233 has 2 divisors, whose sum is σ = 404004234. Its totient is φ = 404004232.

The previous prime is 404004217. The next prime is 404004241. The reversal of 404004233 is 332400404.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 338118544 + 65885689 = 18388^2 + 8117^2 .

It is a cyclic number.

It is not a de Polignac number, because 404004233 - 2⁴ = 404004217 is a prime.

It is not a weakly prime, because it can be changed into another prime (404004533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202002116 + 202002117.

It is an arithmetic number, because the mean of its divisors is an integer number (202002117).

Almost surely, 2^404004233 is an apocalyptic number.

It is an amenable number.

404004233 is a deficient number, since it is larger than the sum of its proper divisors (1).

404004233 is an equidigital number, since it uses as much as digits as its factorization.

404004233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 404004233 is about 20099.8565417766. The cubic root of 404004233 is about 739.2567610625.

Adding to 404004233 its reverse (332400404), we get a palindrome (736404637).

The spelling of 404004233 in words is "four hundred four million, four thousand, two hundred thirty-three".