422655788 has 12 divisors (see below), whose sum is σ = 743154552. Its totient is φ = 210325920.

The previous prime is 422655787. The next prime is 422655799. The reversal of 422655788 is 887556224.

It is not an unprimeable number, because it can be changed into a prime (422655787) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 249545 + ... + 251232.

It is an arithmetic number, because the mean of its divisors is an integer number (61929546).

Almost surely, 2^422655788 is an apocalyptic number.

It is an amenable number.

422655788 is a deficient number, since it is larger than the sum of its proper divisors (320498764).

422655788 is a wasteful number, since it uses less digits than its factorization.

422655788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500992 (or 500990 counting only the distinct ones).

The product of its digits is 1075200, while the sum is 47.

The square root of 422655788 is about 20558.5940180743. The cubic root of 422655788 is about 750.4624040366.

The spelling of 422655788 in words is "four hundred twenty-two million, six hundred fifty-five thousand, seven hundred eighty-eight".