1044243220 has 24 divisors (see below), whose sum is σ = 2203312608. Its totient is φ = 415716000.

The previous prime is 1044243209. The next prime is 1044243229. The reversal of 1044243220 is 223424401.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1044243191 and 1044243200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1044243229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119506 + ... + 127945.

It is an arithmetic number, because the mean of its divisors is an integer number (91804692).

Almost surely, 2^1044243220 is an apocalyptic number.

1044243220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1044243220 is an abundant number, since it is smaller than the sum of its proper divisors (1159069388).

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

1044243220 is a wasteful number, since it uses less digits than its factorization.

1044243220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247671 (or 247669 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 1044243220 is about 32314.7523586364. The cubic root of 1044243220 is about 1014.5354373828.

Adding to 1044243220 its reverse (223424401), we get a palindrome (1267667621).

The spelling of 1044243220 in words is "one billion, forty-four million, two hundred forty-three thousand, two hundred twenty".