422836438 has 8 divisors (see below), whose sum is σ = 646221888. Its totient is φ = 207429144.

The previous prime is 422836423. The next prime is 422836441. The reversal of 422836438 is 834638224.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 422836438.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 1994406 + ... + 1994617.

It is an arithmetic number, because the mean of its divisors is an integer number (80777736).

Almost surely, 2^422836438 is an apocalyptic number.

422836438 is a deficient number, since it is larger than the sum of its proper divisors (223385450).

422836438 is a wasteful number, since it uses less digits than its factorization.

422836438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3989078.

The product of its digits is 221184, while the sum is 40.

The square root of 422836438 is about 20562.9870884558. The cubic root of 422836438 is about 750.5693087777.

The spelling of 422836438 in words is "four hundred twenty-two million, eight hundred thirty-six thousand, four hundred thirty-eight".