1140431444 has 12 divisors (see below), whose sum is σ = 1998221568. Its totient is φ = 569511000.

The previous prime is 1140431407. The next prime is 1140431459. The reversal of 1140431444 is 4441340411.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 172532 + ... + 179019.

It is an arithmetic number, because the mean of its divisors is an integer number (166518464).

Almost surely, 2^1140431444 is an apocalyptic number.

It is an amenable number.

1140431444 is a deficient number, since it is larger than the sum of its proper divisors (857790124).

1140431444 is a wasteful number, since it uses less digits than its factorization.

1140431444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352366 (or 352364 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

The square root of 1140431444 is about 33770.2745621057. The cubic root of 1140431444 is about 1044.7756953920.

Adding to 1140431444 its reverse (4441340411), we get a palindrome (5581771855).

The spelling of 1140431444 in words is "one billion, one hundred forty million, four hundred thirty-one thousand, four hundred forty-four".