422839645 has 8 divisors (see below), whose sum is σ = 508469760. Its totient is φ = 337563600.

The previous prime is 422839621. The next prime is 422839687. The reversal of 422839645 is 546938224.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 422839645 - 2¹⁹ = 422315357 is a prime.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 85881 + ... + 90670.

It is an arithmetic number, because the mean of its divisors is an integer number (63558720).

Almost surely, 2^422839645 is an apocalyptic number.

It is an amenable number.

422839645 is a deficient number, since it is larger than the sum of its proper divisors (85630115).

422839645 is a wasteful number, since it uses less digits than its factorization.

422839645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177035.

The product of its digits is 414720, while the sum is 43.

The square root of 422839645 is about 20563.0650682237. The cubic root of 422839645 is about 750.5712063355.

The spelling of 422839645 in words is "four hundred twenty-two million, eight hundred thirty-nine thousand, six hundred forty-five".