40440213320041 has 4 divisors (see below), whose sum is σ = 40446241082500. Its totient is φ = 40434185557584.

The previous prime is 40440213320009. The next prime is 40440213320071. The reversal of 40440213320041 is 14002331204404.

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 17085987590400 + 23354225729641 = 4133520^2 + 4832621^2 .

It is a cyclic number.

It is not a de Polignac number, because 40440213320041 - 2⁵ = 40440213320009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40440213319991 and 40440213320009.

It is not an unprimeable number, because it can be changed into a prime (40440213320071) 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, 3013871166 + ... + 3013884583.

It is an arithmetic number, because the mean of its divisors is an integer number (10111560270625).

Almost surely, 2^{40440213320041} is an apocalyptic number.

It is an amenable number.

40440213320041 is a deficient number, since it is larger than the sum of its proper divisors (6027762459).

40440213320041 is an equidigital number, since it uses as much as digits as its factorization.

40440213320041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6027762458.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 40440213320041 its reverse (14002331204404), we get a palindrome (54442544524445).

The spelling of 40440213320041 in words is "forty trillion, four hundred forty billion, two hundred thirteen million, three hundred twenty thousand, forty-one".