4222288 has 20 divisors (see below), whose sum is σ = 9349600. Its totient is φ = 1809504.

The previous prime is 4222277. The next prime is 4222289. The reversal of 4222288 is 8822224.

It is a Harshad number since it is a multiple of its sum of digits (28).

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

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4222289) 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, 18738 + ... + 18961.

It is an arithmetic number, because the mean of its divisors is an integer number (467480).

Almost surely, 2^4222288 is an apocalyptic number.

It is an amenable number.

4222288 is an abundant number, since it is smaller than the sum of its proper divisors (5127312).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4222288 is a wasteful number, since it uses less digits than its factorization.

4222288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37714 (or 37708 counting only the distinct ones).

The product of its digits is 4096, while the sum is 28.

The square root of 4222288 is about 2054.8206734409. The cubic root of 4222288 is about 161.6277588494.

The spelling of 4222288 in words is "four million, two hundred twenty-two thousand, two hundred eighty-eight".