422288 has 10 divisors (see below), whose sum is σ = 818214. Its totient is φ = 211136.

The previous prime is 422287. The next prime is 422291. The reversal of 422288 is 882224.

422288 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 350464 + 71824 = 592^2 + 268^2 .

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (422287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13181 + ... + 13212.

2⁴²²²⁸⁸ is an apocalyptic number.

It is an amenable number.

422288 is a deficient number, since it is larger than the sum of its proper divisors (395926).

422288 is a wasteful number, since it uses less digits than its factorization.

422288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26401 (or 26395 counting only the distinct ones).

The product of its digits is 2048, while the sum is 26.

The square root of 422288 is about 649.8369026148. The cubic root of 422288 is about 75.0244660920.

The spelling of 422288 in words is "four hundred twenty-two thousand, two hundred eighty-eight".