1140221444 has 12 divisors (see below), whose sum is σ = 2005416000. Its totient is φ = 567245448.

The previous prime is 1140221443. The next prime is 1140221473. The reversal of 1140221444 is 4441220411.

It is not an unprimeable number, because it can be changed into a prime (1140221443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 715424 + ... + 717015.

It is an arithmetic number, because the mean of its divisors is an integer number (167118000).

Almost surely, 2^1140221444 is an apocalyptic number.

It is an amenable number.

1140221444 is a deficient number, since it is larger than the sum of its proper divisors (865194556).

1140221444 is a wasteful number, since it uses less digits than its factorization.

1140221444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1432642 (or 1432640 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

The square root of 1140221444 is about 33767.1651756555. The cubic root of 1140221444 is about 1044.7115628319.

Adding to 1140221444 its reverse (4441220411), we get a palindrome (5581441855).

The spelling of 1140221444 in words is "one billion, one hundred forty million, two hundred twenty-one thousand, four hundred forty-four".