2291688284 has 6 divisors (see below), whose sum is σ = 4010454504. Its totient is φ = 1145844140.

The previous prime is 2291688271. The next prime is 2291688293. The reversal of 2291688284 is 4828861922.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 286461032 + ... + 286461039.

It is an arithmetic number, because the mean of its divisors is an integer number (668409084).

Almost surely, 2^2291688284 is an apocalyptic number.

It is an amenable number.

2291688284 is a deficient number, since it is larger than the sum of its proper divisors (1718766220).

2291688284 is a wasteful number, since it uses less digits than its factorization.

2291688284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572922075 (or 572922073 counting only the distinct ones).

The product of its digits is 884736, while the sum is 50.

The square root of 2291688284 is about 47871.5811729673. The cubic root of 2291688284 is about 1318.4141277596.

The spelling of 2291688284 in words is "two billion, two hundred ninety-one million, six hundred eighty-eight thousand, two hundred eighty-four".