1140244443 has 24 divisors (see below), whose sum is σ = 1803787440. Its totient is φ = 689791680.

The previous prime is 1140244423. The next prime is 1140244489. The reversal of 1140244443 is 3444420411.

It is not a de Polignac number, because 1140244443 - 2⁶ = 1140244379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1140244423) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 75688 + ... + 89493.

It is an arithmetic number, because the mean of its divisors is an integer number (75157810).

Almost surely, 2^1140244443 is an apocalyptic number.

1140244443 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1140244443 is a deficient number, since it is larger than the sum of its proper divisors (663542997).

1140244443 is a wasteful number, since it uses less digits than its factorization.

1140244443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165259 (or 165256 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

The square root of 1140244443 is about 33767.5057266598. The cubic root of 1140244443 is about 1044.7185869528.

Adding to 1140244443 its reverse (3444420411), we get a palindrome (4584664854).

The spelling of 1140244443 in words is "one billion, one hundred forty million, two hundred forty-four thousand, four hundred forty-three".