2291958291 has 12 divisors (see below), whose sum is σ = 3554874312. Its totient is φ = 1309690368.

The previous prime is 2291958287. The next prime is 2291958299. The reversal of 2291958291 is 1928591922.

It is not a de Polignac number, because 2291958291 - 2² = 2291958287 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2291958291.

It is not an unprimeable number, because it can be changed into a prime (2291958299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7795630 + ... + 7795923.

It is an arithmetic number, because the mean of its divisors is an integer number (296239526).

Almost surely, 2^2291958291 is an apocalyptic number.

2291958291 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2291958291 is a deficient number, since it is larger than the sum of its proper divisors (1262916021).

2291958291 is a wasteful number, since it uses less digits than its factorization.

2291958291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15591570 (or 15591563 counting only the distinct ones).

The product of its digits is 233280, while the sum is 48.

The square root of 2291958291 is about 47874.4012077436. The cubic root of 2291958291 is about 1318.4659042987.

The spelling of 2291958291 in words is "two billion, two hundred ninety-one million, nine hundred fifty-eight thousand, two hundred ninety-one".