2291052290 has 16 divisors (see below), whose sum is σ = 4125507768. Its totient is φ = 916062336.

The previous prime is 2291052193. The next prime is 2291052301. The reversal of 2291052290 is 922501922.

It can be written as a sum of positive squares in 4 ways, for example, as 1200137449 + 1090914841 = 34643^2 + 33029^2 .

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 in 7 ways as a sum of consecutive naturals, for example, 17177 + ... + 69836.

Almost surely, 2^2291052290 is an apocalyptic number.

2291052290 is a deficient number, since it is larger than the sum of its proper divisors (1834455478).

2291052290 is a wasteful number, since it uses less digits than its factorization.

2291052290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89653.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 2291052290 is about 47864.9380026758. The cubic root of 2291052290 is about 1318.2921534841.

The spelling of 2291052290 in words is "two billion, two hundred ninety-one million, fifty-two thousand, two hundred ninety".