404432263 has 2 divisors, whose sum is σ = 404432264. Its totient is φ = 404432262.

The previous prime is 404432219. The next prime is 404432279. The reversal of 404432263 is 362234404.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 404432263 - 2¹³ = 404424071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (404432213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202216131 + 202216132.

It is an arithmetic number, because the mean of its divisors is an integer number (202216132).

Almost surely, 2^404432263 is an apocalyptic number.

404432263 is a deficient number, since it is larger than the sum of its proper divisors (1).

404432263 is an equidigital number, since it uses as much as digits as its factorization.

404432263 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 28.

The square root of 404432263 is about 20110.5013115039. The cubic root of 404432263 is about 739.5177421481.

Adding to 404432263 its reverse (362234404), we get a palindrome (766666667).

The spelling of 404432263 in words is "four hundred four million, four hundred thirty-two thousand, two hundred sixty-three".