2248090891 has 4 divisors (see below), whose sum is σ = 2320609984. Its totient is φ = 2175571800.

The previous prime is 2248090879. The next prime is 2248090903. The reversal of 2248090891 is 1980908422.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (2248090879) and next prime (2248090903).

It is a cyclic number.

It is not a de Polignac number, because 2248090891 - 2¹⁹ = 2247566603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2248090841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36259500 + ... + 36259561.

It is an arithmetic number, because the mean of its divisors is an integer number (580152496).

Almost surely, 2^2248090891 is an apocalyptic number.

2248090891 is a deficient number, since it is larger than the sum of its proper divisors (72519093).

2248090891 is an equidigital number, since it uses as much as digits as its factorization.

2248090891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72519092.

The product of its (nonzero) digits is 82944, while the sum is 43.

The square root of 2248090891 is about 47414.0368561885. The cubic root of 2248090891 is about 1309.9999788280. Note that the first 4 decimals are identical.

The spelling of 2248090891 in words is "two billion, two hundred forty-eight million, ninety thousand, eight hundred ninety-one".