40272416221 has 4 divisors (see below), whose sum is σ = 40280058972. Its totient is φ = 40264773472.

The previous prime is 40272416183. The next prime is 40272416243. The reversal of 40272416221 is 12261427204.

40272416221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 23763764025 + 16508652196 = 154155^2 + 128486^2 .

It is a cyclic number.

It is not a de Polignac number, because 40272416221 - 2¹⁵ = 40272383453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40272416521) 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, 3813466 + ... + 3824011.

It is an arithmetic number, because the mean of its divisors is an integer number (10070014743).

Almost surely, 2^40272416221 is an apocalyptic number.

It is an amenable number.

40272416221 is a deficient number, since it is larger than the sum of its proper divisors (7642751).

40272416221 is an equidigital number, since it uses as much as digits as its factorization.

40272416221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7642750.

The product of its (nonzero) digits is 10752, while the sum is 31.

The spelling of 40272416221 in words is "forty billion, two hundred seventy-two million, four hundred sixteen thousand, two hundred twenty-one".