404243363 has 2 divisors, whose sum is σ = 404243364. Its totient is φ = 404243362.

The previous prime is 404243347. The next prime is 404243369. The reversal of 404243363 is 363342404.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 404243363 - 2⁴ = 404243347 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (404243369) 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 as a sum of consecutive naturals, namely, 202121681 + 202121682.

It is an arithmetic number, because the mean of its divisors is an integer number (202121682).

Almost surely, 2^404243363 is an apocalyptic number.

404243363 is a deficient number, since it is larger than the sum of its proper divisors (1).

404243363 is an equidigital number, since it uses as much as digits as its factorization.

404243363 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 29.

The square root of 404243363 is about 20105.8042117196. The cubic root of 404243363 is about 739.4025875893.

Adding to 404243363 its reverse (363342404), we get a palindrome (767585767).

The spelling of 404243363 in words is "four hundred four million, two hundred forty-three thousand, three hundred sixty-three".