422659391 has 16 divisors (see below), whose sum is σ = 538168320. Its totient is φ = 322334880.

The previous prime is 422659387. The next prime is 422659403. The reversal of 422659391 is 193956224.

It is not a de Polignac number, because 422659391 - 2² = 422659387 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 (422659291) 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, 54776 + ... + 62013.

It is an arithmetic number, because the mean of its divisors is an integer number (33635520).

Almost surely, 2^422659391 is an apocalyptic number.

422659391 is a deficient number, since it is larger than the sum of its proper divisors (115508929).

422659391 is a wasteful number, since it uses less digits than its factorization.

422659391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116854.

The product of its digits is 116640, while the sum is 41.

The square root of 422659391 is about 20558.6816454752. The cubic root of 422659391 is about 750.4645365113.

The spelling of 422659391 in words is "four hundred twenty-two million, six hundred fifty-nine thousand, three hundred ninety-one".