2268861 has 8 divisors (see below), whose sum is σ = 3457344. Its totient is φ = 1296480.

The previous prime is 2268853. The next prime is 2268863. The reversal of 2268861 is 1688622.

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

It is not a de Polignac number, because 2268861 - 2³ = 2268853 is a prime.

It is a Curzon number.

2268861 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2268863) 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 7 ways as a sum of consecutive naturals, for example, 54000 + ... + 54041.

It is an arithmetic number, because the mean of its divisors is an integer number (432168).

2^2268861 is an apocalyptic number.

2268861 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2268861 is a deficient number, since it is larger than the sum of its proper divisors (1188483).

2268861 is a wasteful number, since it uses less digits than its factorization.

2268861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108051.

The product of its digits is 9216, while the sum is 33.

The square root of 2268861 is about 1506.2738794788. The cubic root of 2268861 is about 131.4021980455.

The spelling of 2268861 in words is "two million, two hundred sixty-eight thousand, eight hundred sixty-one".