2271445949 has 4 divisors (see below), whose sum is σ = 2271998880. Its totient is φ = 2270893020.

The previous prime is 2271445933. The next prime is 2271445951. The reversal of 2271445949 is 9495441722.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2271445949 - 2⁴ = 2271445933 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 (2271445249) 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, 270257 + ... + 278534.

It is an arithmetic number, because the mean of its divisors is an integer number (567999720).

Almost surely, 2^2271445949 is an apocalyptic number.

It is an amenable number.

2271445949 is a deficient number, since it is larger than the sum of its proper divisors (552931).

2271445949 is an equidigital number, since it uses as much as digits as its factorization.

2271445949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552930.

The product of its digits is 725760, while the sum is 47.

The square root of 2271445949 is about 47659.6889310033. The cubic root of 2271445949 is about 1314.5208196897.

The spelling of 2271445949 in words is "two billion, two hundred seventy-one million, four hundred forty-five thousand, nine hundred forty-nine".