1044443140 has 24 divisors (see below), whose sum is σ = 2362048920. Its totient is φ = 385640448.

The previous prime is 1044443137. The next prime is 1044443171. The reversal of 1044443140 is 413444401.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5541316 + 1038901824 = 2354^2 + 32232^2 .

It is a super-2 number, since 2×1044443140² = 2181722945386119200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2008285 + ... + 2008804.

It is an arithmetic number, because the mean of its divisors is an integer number (98418705).

Almost surely, 2^1044443140 is an apocalyptic number.

1044443140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1044443140 is an abundant number, since it is smaller than the sum of its proper divisors (1317605780).

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

1044443140 is a wasteful number, since it uses less digits than its factorization.

1044443140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4017111 (or 4017109 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 1044443140 is about 32317.8455346268. The cubic root of 1044443140 is about 1014.6001774033.

Adding to 1044443140 its reverse (413444401), we get a palindrome (1457887541).

It can be divided in two parts, 104444 and 3140, that added together give a square (107584 = 328²).

The spelling of 1044443140 in words is "one billion, forty-four million, four hundred forty-three thousand, one hundred forty".