40940236133 has 4 divisors (see below), whose sum is σ = 41015911788. Its totient is φ = 40864560480.

The previous prime is 40940236097. The next prime is 40940236151. The reversal of 40940236133 is 33163204904.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9271186369 + 31669049764 = 96287^2 + 177958^2 .

It is a cyclic number.

It is not a de Polignac number, because 40940236133 - 2²⁰ = 40939187557 is a prime.

It is a super-2 number, since 2×40940236133² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40940236093 and 40940236102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40940236633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37837016 + ... + 37838097.

It is an arithmetic number, because the mean of its divisors is an integer number (10253977947).

Almost surely, 2^40940236133 is an apocalyptic number.

It is an amenable number.

40940236133 is a deficient number, since it is larger than the sum of its proper divisors (75675655).

40940236133 is an equidigital number, since it uses as much as digits as its factorization.

40940236133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75675654.

The product of its (nonzero) digits is 46656, while the sum is 35.

The spelling of 40940236133 in words is "forty billion, nine hundred forty million, two hundred thirty-six thousand, one hundred thirty-three".