4044220 has 24 divisors (see below), whose sum is σ = 8530704. Its totient is φ = 1610496.

The previous prime is 4044217. The next prime is 4044223. The reversal of 4044220 is 224404.

It is an interprime number because it is at equal distance from previous prime (4044217) and next prime (4044223).

It is a junction number, because it is equal to n+sod(n) for n = 4044194 and 4044203.

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 7 ways as a sum of consecutive naturals, for example, 8427 + ... + 8893.

It is an arithmetic number, because the mean of its divisors is an integer number (355446).

Almost surely, 2^4044220 is an apocalyptic number.

It is an amenable number.

4044220 is an abundant number, since it is smaller than the sum of its proper divisors (4486484).

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

4044220 is a wasteful number, since it uses less digits than its factorization.

4044220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 909 (or 907 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 4044220 is about 2011.0246144690. The cubic root of 4044220 is about 159.3229200589.

Adding to 4044220 its reverse (224404), we get a palindrome (4268624).

It can be divided in two parts, 404 and 4220, that added together give a square (4624 = 68²).

The spelling of 4044220 in words is "four million, forty-four thousand, two hundred twenty".