422785605 has 16 divisors (see below), whose sum is σ = 737953344. Its totient is φ = 204986880.

The previous prime is 422785543. The next prime is 422785621. The reversal of 422785605 is 506587224.

It is not a de Polignac number, because 422785605 - 2¹² = 422781509 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 15 ways as a sum of consecutive naturals, for example, 1281004 + ... + 1281333.

It is an arithmetic number, because the mean of its divisors is an integer number (46122084).

Almost surely, 2^422785605 is an apocalyptic number.

It is an amenable number.

422785605 is a deficient number, since it is larger than the sum of its proper divisors (315167739).

422785605 is a wasteful number, since it uses less digits than its factorization.

422785605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2562356.

The product of its (nonzero) digits is 134400, while the sum is 39.

The square root of 422785605 is about 20561.7510197940. The cubic root of 422785605 is about 750.5392299929.

The spelling of 422785605 in words is "four hundred twenty-two million, seven hundred eighty-five thousand, six hundred five".