2291008 has 14 divisors (see below), whose sum is σ = 4546346. Its totient is φ = 1145472.

The previous prime is 2290999. The next prime is 2291017. The reversal of 2291008 is 8001922.

It is an interprime number because it is at equal distance from previous prime (2290999) and next prime (2291017).

It can be written as a sum of positive squares in only one way, i.e., 1459264 + 831744 = 1208^2 + 912^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2291008.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17835 + ... + 17962.

It is an arithmetic number, because the mean of its divisors is an integer number (324739).

2^2291008 is an apocalyptic number.

It is an amenable number.

2291008 is a deficient number, since it is larger than the sum of its proper divisors (2255338).

2291008 is an equidigital number, since it uses as much as digits as its factorization.

2291008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35809 (or 35799 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 2291008 is about 1513.6076109745. The cubic root of 2291008 is about 131.8283658474.

The spelling of 2291008 in words is "two million, two hundred ninety-one thousand, eight".