422401403 has 2 divisors, whose sum is σ = 422401404. Its totient is φ = 422401402.

The previous prime is 422401349. The next prime is 422401429. The reversal of 422401403 is 304104224.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 422401403 - 2⁶ = 422401339 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (422401303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211200701 + 211200702.

It is an arithmetic number, because the mean of its divisors is an integer number (211200702).

Almost surely, 2^422401403 is an apocalyptic number.

422401403 is a deficient number, since it is larger than the sum of its proper divisors (1).

422401403 is an equidigital number, since it uses as much as digits as its factorization.

422401403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 422401403 is about 20552.4062581489. The cubic root of 422401403 is about 750.3118128642.

Adding to 422401403 its reverse (304104224), we get a palindrome (726505627).

The spelling of 422401403 in words is "four hundred twenty-two million, four hundred one thousand, four hundred three".