400224463 has 2 divisors, whose sum is σ = 400224464. Its totient is φ = 400224462.

The previous prime is 400224457. The next prime is 400224467. The reversal of 400224463 is 364422004.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 400224463 - 2⁵ = 400224431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (400224467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200112231 + 200112232.

It is an arithmetic number, because the mean of its divisors is an integer number (200112232).

Almost surely, 2^400224463 is an apocalyptic number.

400224463 is a deficient number, since it is larger than the sum of its proper divisors (1).

400224463 is an equidigital number, since it uses as much as digits as its factorization.

400224463 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 400224463 is about 20005.6107879765. The cubic root of 400224463 is about 736.9440954166.

Adding to 400224463 its reverse (364422004), we get a palindrome (764646467).

The spelling of 400224463 in words is "four hundred million, two hundred twenty-four thousand, four hundred sixty-three".