422406917 has 16 divisors (see below), whose sum is σ = 452121600. Its totient is φ = 393485040.

The previous prime is 422406913. The next prime is 422406949. The reversal of 422406917 is 719604224.

It is a cyclic number.

It is not a de Polignac number, because 422406917 - 2² = 422406913 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 (422406913) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 520442 + ... + 521252.

It is an arithmetic number, because the mean of its divisors is an integer number (28257600).

Almost surely, 2^422406917 is an apocalyptic number.

It is an amenable number.

422406917 is a deficient number, since it is larger than the sum of its proper divisors (29714683).

422406917 is a wasteful number, since it uses less digits than its factorization.

422406917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1256.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 422406917 is about 20552.5404025877. The cubic root of 422406917 is about 750.3150776903.

The spelling of 422406917 in words is "four hundred twenty-two million, four hundred six thousand, nine hundred seventeen".