1140444120 has 128 divisors (see below), whose sum is σ = 3547514880. Its totient is φ = 292992000.

The previous prime is 1140444113. The next prime is 1140444181. The reversal of 1140444120 is 214440411.

It is a super-2 number, since 2×1140444120² = 2601225581685148800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1044775 + ... + 1045865.

It is an arithmetic number, because the mean of its divisors is an integer number (27714960).

Almost surely, 2^1140444120 is an apocalyptic number.

1140444120 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 1140444120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1773757440).

1140444120 is an abundant number, since it is smaller than the sum of its proper divisors (2407070760).

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

1140444120 is a wasteful number, since it uses less digits than its factorization.

1140444120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1417 (or 1413 counting only the distinct ones).

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

The square root of 1140444120 is about 33770.4622414322. The cubic root of 1140444120 is about 1044.7795663035.

Adding to 1140444120 its reverse (214440411), we get a palindrome (1354884531).

The spelling of 1140444120 in words is "one billion, one hundred forty million, four hundred forty-four thousand, one hundred twenty".