1004044220 has 24 divisors (see below), whose sum is σ = 2125100544. Its totient is φ = 398454336.

The previous prime is 1004044219. The next prime is 1004044229. The reversal of 1004044220 is 224404001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1004044229) 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, 195107 + ... + 200186.

It is an arithmetic number, because the mean of its divisors is an integer number (88545856).

Almost surely, 2^1004044220 is an apocalyptic number.

1004044220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1004044220 is an abundant number, since it is smaller than the sum of its proper divisors (1121056324).

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

1004044220 is a wasteful number, since it uses less digits than its factorization.

1004044220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395429 (or 395427 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 1004044220 is about 31686.6568132392. The cubic root of 1004044220 is about 1001.3462601037.

Adding to 1004044220 its reverse (224404001), we get a palindrome (1228448221).

The spelling of 1004044220 in words is "one billion, four million, forty-four thousand, two hundred twenty".