1140040726 has 16 divisors (see below), whose sum is σ = 1870617600. Its totient is φ = 516784680.

The previous prime is 1140040691. The next prime is 1140040729. The reversal of 1140040726 is 6270400411.

It is a self number, because there is not a number n which added to its sum of digits gives 1140040726.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1140040729) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62526 + ... + 78673.

It is an arithmetic number, because the mean of its divisors is an integer number (116913600).

Almost surely, 2^1140040726 is an apocalyptic number.

1140040726 is a deficient number, since it is larger than the sum of its proper divisors (730576874).

1140040726 is a wasteful number, since it uses less digits than its factorization.

1140040726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141579.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 1140040726 is about 33764.4891268919. The cubic root of 1140040726 is about 1044.6563664896.

The spelling of 1140040726 in words is "one billion, one hundred forty million, forty thousand, seven hundred twenty-six".