422839417 has 32 divisors (see below), whose sum is σ = 569769984. Its totient is φ = 303048000.

The previous prime is 422839399. The next prime is 422839423. The reversal of 422839417 is 714938224.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-422839417 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 422839417.

It is not an unprimeable number, because it can be changed into a prime (422839477) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 366792 + ... + 367942.

It is an arithmetic number, because the mean of its divisors is an integer number (17805312).

Almost surely, 2^422839417 is an apocalyptic number.

It is an amenable number.

422839417 is a deficient number, since it is larger than the sum of its proper divisors (146930567).

422839417 is a wasteful number, since it uses less digits than its factorization.

422839417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1549.

The product of its digits is 96768, while the sum is 40.

The square root of 422839417 is about 20563.0595243023. The cubic root of 422839417 is about 750.5710714299.

The spelling of 422839417 in words is "four hundred twenty-two million, eight hundred thirty-nine thousand, four hundred seventeen".