4044222 has 64 divisors (see below), whose sum is σ = 11074560. Its totient is φ = 1065312.

The previous prime is 4044217. The next prime is 4044223. The reversal of 4044222 is 2224404.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 4044195 and 4044204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4044223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4503 + ... + 5325.

It is an arithmetic number, because the mean of its divisors is an integer number (173040).

Almost surely, 2^4044222 is an apocalyptic number.

4044222 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 4044222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5537280).

4044222 is an abundant number, since it is smaller than the sum of its proper divisors (7030338).

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

4044222 is a wasteful number, since it uses less digits than its factorization.

4044222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 854 (or 848 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

The square root of 4044222 is about 2011.0251117278. The cubic root of 4044222 is about 159.3229463223.

Adding to 4044222 its reverse (2224404), we get a palindrome (6268626).

The spelling of 4044222 in words is "four million, forty-four thousand, two hundred twenty-two".