400030063 has 2 divisors, whose sum is σ = 400030064. Its totient is φ = 400030062.

The previous prime is 400030039. The next prime is 400030067. The reversal of 400030063 is 360030004.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 400030063 - 2⁹ = 400029551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (400030067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200015031 + 200015032.

It is an arithmetic number, because the mean of its divisors is an integer number (200015032).

Almost surely, 2^400030063 is an apocalyptic number.

400030063 is a deficient number, since it is larger than the sum of its proper divisors (1).

400030063 is an equidigital number, since it uses as much as digits as its factorization.

400030063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 400030063 is about 20000.7515608789. The cubic root of 400030063 is about 736.8247581055.

Adding to 400030063 its reverse (360030004), we get a palindrome (760060067).

The spelling of 400030063 in words is "four hundred million, thirty thousand, sixty-three".