1140535444 has 6 divisors (see below), whose sum is σ = 1995937034. Its totient is φ = 570267720.

The previous prime is 1140535441. The next prime is 1140535469. The reversal of 1140535444 is 4445350411.

It can be written as a sum of positive squares in only one way, i.e., 1116896400 + 23639044 = 33420^2 + 4862^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1140535441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142566927 + ... + 142566934.

Almost surely, 2^1140535444 is an apocalyptic number.

It is an amenable number.

1140535444 is a deficient number, since it is larger than the sum of its proper divisors (855401590).

1140535444 is a wasteful number, since it uses less digits than its factorization.

1140535444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285133865 (or 285133863 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 31.

The square root of 1140535444 is about 33771.8143427326. The cubic root of 1140535444 is about 1044.8074533640.

Adding to 1140535444 its reverse (4445350411), we get a palindrome (5585885855).

The spelling of 1140535444 in words is "one billion, one hundred forty million, five hundred thirty-five thousand, four hundred forty-four".