404023463 has 2 divisors, whose sum is σ = 404023464. Its totient is φ = 404023462.

The previous prime is 404023439. The next prime is 404023469. The reversal of 404023463 is 364320404.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 404023463 - 2²² = 399829159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (404023469) 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, 202011731 + 202011732.

It is an arithmetic number, because the mean of its divisors is an integer number (202011732).

Almost surely, 2^404023463 is an apocalyptic number.

404023463 is a deficient number, since it is larger than the sum of its proper divisors (1).

404023463 is an equidigital number, since it uses as much as digits as its factorization.

404023463 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 26.

The square root of 404023463 is about 20100.3348977076. The cubic root of 404023463 is about 739.2684900501.

Adding to 404023463 its reverse (364320404), we get a palindrome (768343867).

The spelling of 404023463 in words is "four hundred four million, twenty-three thousand, four hundred sixty-three".