422019917 has 8 divisors (see below), whose sum is σ = 487467072. Its totient is φ = 361086400.

The previous prime is 422019863. The next prime is 422019947. The reversal of 422019917 is 719910224.

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 422019917 - 2⁶ = 422019853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422019947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1128209 + ... + 1128582.

It is an arithmetic number, because the mean of its divisors is an integer number (60933384).

Almost surely, 2^422019917 is an apocalyptic number.

It is an amenable number.

422019917 is a deficient number, since it is larger than the sum of its proper divisors (65447155).

422019917 is a wasteful number, since it uses less digits than its factorization.

422019917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2256819.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 422019917 is about 20543.1233506495. The cubic root of 422019917 is about 750.0858669095.

The spelling of 422019917 in words is "four hundred twenty-two million, nineteen thousand, nine hundred seventeen".