1159785940 has 12 divisors (see below), whose sum is σ = 2435550516. Its totient is φ = 463914368.

The previous prime is 1159785937. The next prime is 1159785941. The reversal of 1159785940 is 495879511.

It can be written as a sum of positive squares in 2 ways, for example, as 889709584 + 270076356 = 29828^2 + 16434^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1159785941) 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, 28994629 + ... + 28994668.

It is an arithmetic number, because the mean of its divisors is an integer number (202962543).

Almost surely, 2^1159785940 is an apocalyptic number.

1159785940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1159785940 is an abundant number, since it is smaller than the sum of its proper divisors (1275764576).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1159785940 is a wasteful number, since it uses less digits than its factorization.

1159785940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57989306 (or 57989304 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 49.

The square root of 1159785940 is about 34055.6300778594. The cubic root of 1159785940 is about 1050.6529393146.

The spelling of 1159785940 in words is "one billion, one hundred fifty-nine million, seven hundred eighty-five thousand, nine hundred forty".