422043779 has 8 divisors (see below), whose sum is σ = 425749632. Its totient is φ = 418354560.

The previous prime is 422043763. The next prime is 422043781. The reversal of 422043779 is 977340224.

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

It is a cyclic number.

It is not a de Polignac number, because 422043779 - 2⁴ = 422043763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (422043179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49817 + ... + 57669.

It is an arithmetic number, because the mean of its divisors is an integer number (53218704).

Almost surely, 2^422043779 is an apocalyptic number.

422043779 is a deficient number, since it is larger than the sum of its proper divisors (3705853).

422043779 is a wasteful number, since it uses less digits than its factorization.

422043779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8317.

The product of its (nonzero) digits is 84672, while the sum is 38.

The square root of 422043779 is about 20543.7041207276. The cubic root of 422043779 is about 750.1000038502.

The spelling of 422043779 in words is "four hundred twenty-two million, forty-three thousand, seven hundred seventy-nine".