1044421140 has 48 divisors (see below), whose sum is σ = 3342148992. Its totient is φ = 238724736.

The previous prime is 1044421117. The next prime is 1044421177. The reversal of 1044421140 is 411244401.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1242939 + ... + 1243778.

It is an arithmetic number, because the mean of its divisors is an integer number (69628104).

Almost surely, 2^1044421140 is an apocalyptic number.

1044421140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1044421140 is an abundant number, since it is smaller than the sum of its proper divisors (2297727852).

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

1044421140 is a wasteful number, since it uses less digits than its factorization.

1044421140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2486736 (or 2486734 counting only the distinct ones).

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

The square root of 1044421140 is about 32317.5051636106. The cubic root of 1044421140 is about 1014.5930535559.

Adding to 1044421140 its reverse (411244401), we get a palindrome (1455665541).

It can be divided in two parts, 104 and 4421140, that added together give a palindrome (4421244).

The spelling of 1044421140 in words is "one billion, forty-four million, four hundred twenty-one thousand, one hundred forty".