1044021144 has 64 divisors (see below), whose sum is σ = 2650112640. Its totient is φ = 342694400.

The previous prime is 1044021113. The next prime is 1044021163. The reversal of 1044021144 is 4411204401.

It is a self number, because there is not a number n which added to its sum of digits gives 1044021144.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 798139 + ... + 799445.

It is an arithmetic number, because the mean of its divisors is an integer number (41408010).

Almost surely, 2^1044021144 is an apocalyptic number.

It is an amenable number.

1044021144 is an abundant number, since it is smaller than the sum of its proper divisors (1606091496).

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

1044021144 is a wasteful number, since it uses less digits than its factorization.

1044021144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1800 (or 1796 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 1044021144 is about 32311.3160363362. The cubic root of 1044021144 is about 1014.4635129049.

Adding to 1044021144 its reverse (4411204401), we get a palindrome (5455225545).

The spelling of 1044021144 in words is "one billion, forty-four million, twenty-one thousand, one hundred forty-four".