2271239856 has 30 divisors (see below), whose sum is σ = 6356317500. Its totient is φ = 757079904.

The previous prime is 2271239837. The next prime is 2271239909. The reversal of 2271239856 is 6589321722.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7886106 + ... + 7886393.

It is an arithmetic number, because the mean of its divisors is an integer number (211877250).

Almost surely, 2^2271239856 is an apocalyptic number.

It is an amenable number.

2271239856 is an abundant number, since it is smaller than the sum of its proper divisors (4085077644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2271239856 is a wasteful number, since it uses less digits than its factorization.

2271239856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15772513 (or 15772504 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 2271239856 is about 47657.5267507662. The cubic root of 2271239856 is about 1314.4810620875.

The spelling of 2271239856 in words is "two billion, two hundred seventy-one million, two hundred thirty-nine thousand, eight hundred fifty-six".