1156766040 has 48 divisors (see below), whose sum is σ = 3759490800. Its totient is φ = 308470848.

The previous prime is 1156766011. The next prime is 1156766041. The reversal of 1156766040 is 406676511.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1156765986 and 1156766004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1156766041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1606260 + ... + 1606979.

It is an arithmetic number, because the mean of its divisors is an integer number (78322725).

Almost surely, 2^1156766040 is an apocalyptic number.

1156766040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1156766040 is an abundant number, since it is smaller than the sum of its proper divisors (2602724760).

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

1156766040 is a wasteful number, since it uses less digits than its factorization.

1156766040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3213256 (or 3213249 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 1156766040 is about 34011.2634284585. The cubic root of 1156766040 is about 1049.7402350604.

The spelling of 1156766040 in words is "one billion, one hundred fifty-six million, seven hundred sixty-six thousand, forty".