422788 has 12 divisors (see below), whose sum is σ = 778960. Its totient is φ = 200232.

The previous prime is 422761. The next prime is 422789. The reversal of 422788 is 887224.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (422789) 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, 2706 + ... + 2857.

2⁴²²⁷⁸⁸ is an apocalyptic number.

It is an amenable number.

422788 is a deficient number, since it is larger than the sum of its proper divisors (356172).

422788 is a wasteful number, since it uses less digits than its factorization.

422788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5586 (or 5584 counting only the distinct ones).

The product of its digits is 7168, while the sum is 31.

The square root of 422788 is about 650.2215007211. The cubic root of 422788 is about 75.0540647211.

The spelling of 422788 in words is "four hundred twenty-two thousand, seven hundred eighty-eight".