422155716 has 12 divisors (see below), whose sum is σ = 985030032. Its totient is φ = 140718568.

The previous prime is 422155711. The next prime is 422155729. The reversal of 422155716 is 617551224.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (422155711) 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 3 ways as a sum of consecutive naturals, for example, 17589810 + ... + 17589833.

It is an arithmetic number, because the mean of its divisors is an integer number (82085836).

Almost surely, 2^422155716 is an apocalyptic number.

It is an amenable number.

422155716 is an abundant number, since it is smaller than the sum of its proper divisors (562874316).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

422155716 is a wasteful number, since it uses less digits than its factorization.

422155716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35179650 (or 35179648 counting only the distinct ones).

The product of its digits is 16800, while the sum is 33.

The square root of 422155716 is about 20546.4283027489. The cubic root of 422155716 is about 750.1663133393.

The spelling of 422155716 in words is "four hundred twenty-two million, one hundred fifty-five thousand, seven hundred sixteen".