4222784 has 14 divisors (see below), whose sum is σ = 8379714. Its totient is φ = 2111360.

The previous prime is 4222781. The next prime is 4222793. The reversal of 4222784 is 4872224.

It can be written as a sum of positive squares in only one way, i.e., 4000000 + 222784 = 2000^2 + 472^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4222781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32927 + ... + 33054.

It is an arithmetic number, because the mean of its divisors is an integer number (598551).

Almost surely, 2^4222784 is an apocalyptic number.

It is an amenable number.

4222784 is a deficient number, since it is larger than the sum of its proper divisors (4156930).

4222784 is an equidigital number, since it uses as much as digits as its factorization.

4222784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65993 (or 65983 counting only the distinct ones).

The product of its digits is 7168, while the sum is 29.

The square root of 4222784 is about 2054.9413616938. The cubic root of 4222784 is about 161.6340875058.

It can be divided in two parts, 4 and 222784, that multiplied together give a square (891136 = 944²).

The spelling of 4222784 in words is "four million, two hundred twenty-two thousand, seven hundred eighty-four".