422127657 has 24 divisors (see below), whose sum is σ = 700714560. Its totient is φ = 239876640.

The previous prime is 422127653. The next prime is 422127691. The reversal of 422127657 is 756721224.

It is a happy number.

It is not a de Polignac number, because 422127657 - 2² = 422127653 is a prime.

It is not an unprimeable number, because it can be changed into a prime (422127653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7107 + ... + 29912.

It is an arithmetic number, because the mean of its divisors is an integer number (29196440).

Almost surely, 2^422127657 is an apocalyptic number.

It is an amenable number.

422127657 is a deficient number, since it is larger than the sum of its proper divisors (278586903).

422127657 is a wasteful number, since it uses less digits than its factorization.

422127657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37213 (or 37210 counting only the distinct ones).

The product of its digits is 47040, while the sum is 36.

The square root of 422127657 is about 20545.7454719949. The cubic root of 422127657 is about 750.1496927874.

It can be divided in two parts, 4221 and 27657, that added together give a triangular number (31878 = T₂₅₂).

The spelling of 422127657 in words is "four hundred twenty-two million, one hundred twenty-seven thousand, six hundred fifty-seven".