4091040729 has 8 divisors (see below), whose sum is σ = 6060801120. Its totient is φ = 2727360468.

The previous prime is 4091040719. The next prime is 4091040749. The reversal of 4091040729 is 9270401904.

It is not a de Polignac number, because 4091040729 - 2²⁴ = 4074263513 is a prime.

It is a super-2 number, since 2×4091040729² = 33473228492673702882, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 4091040693 and 4091040702.

It is not an unprimeable number, because it can be changed into a prime (4091040719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75759987 + ... + 75760040.

It is an arithmetic number, because the mean of its divisors is an integer number (757600140).

Almost surely, 2^4091040729 is an apocalyptic number.

It is an amenable number.

4091040729 is a deficient number, since it is larger than the sum of its proper divisors (1969760391).

4091040729 is a wasteful number, since it uses less digits than its factorization.

4091040729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151520036 (or 151520030 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 4091040729 is about 63961.2439606986. The cubic root of 4091040729 is about 1599.3540008018.

The spelling of 4091040729 in words is "four billion, ninety-one million, forty thousand, seven hundred twenty-nine".