9940227571 has 4 divisors (see below), whose sum is σ = 9940449600. Its totient is φ = 9940005544.

The previous prime is 9940227529. The next prime is 9940227617. The reversal of 9940227571 is 1757220499.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 9940227571 - 2¹⁹ = 9939703283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9940227971) 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, 17731 + ... + 142108.

It is an arithmetic number, because the mean of its divisors is an integer number (2485112400).

Almost surely, 2^9940227571 is an apocalyptic number.

9940227571 is a deficient number, since it is larger than the sum of its proper divisors (222029).

9940227571 is a wasteful number, since it uses less digits than its factorization.

9940227571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222028.

The product of its (nonzero) digits is 317520, while the sum is 46.

The square root of 9940227571 is about 99700.6899223872. The cubic root of 9940227571 is about 2150.1335825421.

The spelling of 9940227571 in words is "nine billion, nine hundred forty million, two hundred twenty-seven thousand, five hundred seventy-one".