422415403 has 4 divisors (see below), whose sum is σ = 425213008. Its totient is φ = 419617800.

The previous prime is 422415379. The next prime is 422415419. The reversal of 422415403 is 304514224.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 422415403 - 2⁹ = 422414891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (422415443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1398576 + ... + 1398877.

It is an arithmetic number, because the mean of its divisors is an integer number (106303252).

Almost surely, 2^422415403 is an apocalyptic number.

422415403 is a deficient number, since it is larger than the sum of its proper divisors (2797605).

422415403 is a wasteful number, since it uses less digits than its factorization.

422415403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2797604.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 422415403 is about 20552.7468480493. The cubic root of 422415403 is about 750.3201021748.

Adding to 422415403 its reverse (304514224), we get a palindrome (726929627).

The spelling of 422415403 in words is "four hundred twenty-two million, four hundred fifteen thousand, four hundred three".