2291779760 has 40 divisors (see below), whose sum is σ = 5415750096. Its totient is φ = 901681920.

The previous prime is 2291779757. The next prime is 2291779769. The reversal of 2291779760 is 679771922.

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

It is a junction number, because it is equal to n+sod(n) for n = 2291779699 and 2291779708.

It is not an unprimeable number, because it can be changed into a prime (2291779769) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 229934 + ... + 239693.

Almost surely, 2^2291779760 is an apocalyptic number.

2291779760 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2291779760 is an abundant number, since it is smaller than the sum of its proper divisors (3123970336).

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

2291779760 is a wasteful number, since it uses less digits than its factorization.

2291779760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469701 (or 469695 counting only the distinct ones).

The product of its (nonzero) digits is 666792, while the sum is 50.

The square root of 2291779760 is about 47872.5365945863. The cubic root of 2291779760 is about 1318.4316696518.

The spelling of 2291779760 in words is "two billion, two hundred ninety-one million, seven hundred seventy-nine thousand, seven hundred sixty".