40236134401 has 4 divisors (see below), whose sum is σ = 40289287252. Its totient is φ = 40182981552.

The previous prime is 40236134387. The next prime is 40236134413. The reversal of 40236134401 is 10443163204.

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 32480690176 + 7755444225 = 180224^2 + 88065^2 .

It is a cyclic number.

It is not a de Polignac number, because 40236134401 - 2⁵ = 40236134369 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40236134401.

It is not an unprimeable number, because it can be changed into a prime (40236134201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26575290 + ... + 26576803.

It is an arithmetic number, because the mean of its divisors is an integer number (10072321813).

Almost surely, 2^40236134401 is an apocalyptic number.

It is an amenable number.

40236134401 is a deficient number, since it is larger than the sum of its proper divisors (53152851).

40236134401 is an equidigital number, since it uses as much as digits as its factorization.

40236134401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53152850.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 40236134401 its reverse (10443163204), we get a palindrome (50679297605).

The spelling of 40236134401 in words is "forty billion, two hundred thirty-six million, one hundred thirty-four thousand, four hundred one".