2288811 has 8 divisors (see below), whose sum is σ = 3487744. Its totient is φ = 1307880.

The previous prime is 2288809. The next prime is 2288821. The reversal of 2288811 is 1188822.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2288811 - 2¹ = 2288809 is a prime.

It is a Duffinian number.

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (2288801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54475 + ... + 54516.

It is an arithmetic number, because the mean of its divisors is an integer number (435968).

2^2288811 is an apocalyptic number.

2288811 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2288811 is a deficient number, since it is larger than the sum of its proper divisors (1198933).

2288811 is a wasteful number, since it uses less digits than its factorization.

2288811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109001.

The product of its digits is 2048, while the sum is 30.

The square root of 2288811 is about 1512.8816873768. The cubic root of 2288811 is about 131.7862127064.

The spelling of 2288811 in words is "two million, two hundred eighty-eight thousand, eight hundred eleven".