1155793826 has 32 divisors (see below), whose sum is σ = 2033233920. Its totient is φ = 487112400.

The previous prime is 1155793789. The next prime is 1155793829. The reversal of 1155793826 is 6283975511.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is not an unprimeable number, because it can be changed into a prime (1155793829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9770 + ... + 49061.

It is an arithmetic number, because the mean of its divisors is an integer number (63538560).

Almost surely, 2^1155793826 is an apocalyptic number.

1155793826 is a deficient number, since it is larger than the sum of its proper divisors (877440094).

1155793826 is a wasteful number, since it uses less digits than its factorization.

1155793826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58910.

The product of its digits is 453600, while the sum is 47.

The square root of 1155793826 is about 33996.9678942108. The cubic root of 1155793826 is about 1049.4460648862.

The spelling of 1155793826 in words is "one billion, one hundred fifty-five million, seven hundred ninety-three thousand, eight hundred twenty-six".