2271284784 has 60 divisors (see below), whose sum is σ = 6379177272. Its totient is φ = 754387200.

The previous prime is 2271284761. The next prime is 2271284789. The reversal of 2271284784 is 4874821722.

It is not an unprimeable number, because it can be changed into a prime (2271284789) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12399 + ... + 68529.

Almost surely, 2^2271284784 is an apocalyptic number.

2271284784 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2271284784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3189588636).

2271284784 is an abundant number, since it is smaller than the sum of its proper divisors (4107892488).

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

2271284784 is a wasteful number, since it uses less digits than its factorization.

2271284784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56426 (or 56417 counting only the distinct ones).

The product of its digits is 401408, while the sum is 45.

The square root of 2271284784 is about 47657.9981115447. The cubic root of 2271284784 is about 1314.4897293969.

The spelling of 2271284784 in words is "two billion, two hundred seventy-one million, two hundred eighty-four thousand, seven hundred eighty-four".