2266681 has 4 divisors (see below), whose sum is σ = 2386000. Its totient is φ = 2147364.

The previous prime is 2266679. The next prime is 2266697. The reversal of 2266681 is 1866622.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2266681 - 2¹ = 2266679 is a prime.

It is a super-2 number, since 2×2266681² = 10275685511522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2266601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59631 + ... + 59668.

It is an arithmetic number, because the mean of its divisors is an integer number (596500).

2^2266681 is an apocalyptic number.

It is an amenable number.

2266681 is a deficient number, since it is larger than the sum of its proper divisors (119319).

2266681 is a wasteful number, since it uses less digits than its factorization.

2266681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119318.

The product of its digits is 6912, while the sum is 31.

The square root of 2266681 is about 1505.5500655906. The cubic root of 2266681 is about 131.3600993027.

The spelling of 2266681 in words is "two million, two hundred sixty-six thousand, six hundred eighty-one".