2271779760 has 40 divisors (see below), whose sum is σ = 7042518000. Its totient is φ = 605807872.

The previous prime is 2271779729. The next prime is 2271779779. The reversal of 2271779760 is 679771722.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4732635 + ... + 4733114.

It is an arithmetic number, because the mean of its divisors is an integer number (176062950).

Almost surely, 2^2271779760 is an apocalyptic number.

2271779760 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2271779760 is an abundant number, since it is smaller than the sum of its proper divisors (4770738240).

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

2271779760 is a wasteful number, since it uses less digits than its factorization.

2271779760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9465765 (or 9465759 counting only the distinct ones).

The product of its (nonzero) digits is 518616, while the sum is 48.

The square root of 2271779760 is about 47663.1908289825. The cubic root of 2271779760 is about 1314.5852103943.

The spelling of 2271779760 in words is "two billion, two hundred seventy-one million, seven hundred seventy-nine thousand, seven hundred sixty".