2268891 has 12 divisors (see below), whose sum is σ = 3399032. Its totient is φ = 1512432.

The previous prime is 2268887. The next prime is 2268919. The reversal of 2268891 is 1988622.

It is not a de Polignac number, because 2268891 - 2² = 2268887 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2268841) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 4426 + ... + 4911.

2^2268891 is an apocalyptic number.

2268891 is a deficient number, since it is larger than the sum of its proper divisors (1130141).

2268891 is an frugal number, since it uses more digits than its factorization.

2268891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9352 (or 9340 counting only the distinct ones).

The product of its digits is 13824, while the sum is 36.

The square root of 2268891 is about 1506.2838377942. The cubic root of 2268891 is about 131.4027771978.

The spelling of 2268891 in words is "two million, two hundred sixty-eight thousand, eight hundred ninety-one".