1044404140 has 48 divisors (see below), whose sum is σ = 2375261280. Its totient is φ = 383454720.

The previous prime is 1044404117. The next prime is 1044404147. The reversal of 1044404140 is 414044401.

It is a happy number.

1044404140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (1044404147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35320 + ... + 57760.

It is an arithmetic number, because the mean of its divisors is an integer number (49484610).

Almost surely, 2^1044404140 is an apocalyptic number.

1044404140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1044404140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1187630640).

1044404140 is an abundant number, since it is smaller than the sum of its proper divisors (1330857140).

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

1044404140 is a wasteful number, since it uses less digits than its factorization.

1044404140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22642 (or 22640 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 1044404140 is about 32317.2421471882. The cubic root of 1044404140 is about 1014.5875486962.

Adding to 1044404140 its reverse (414044401), we get a palindrome (1458448541).

The spelling of 1044404140 in words is "one billion, forty-four million, four hundred four thousand, one hundred forty".