2267681 has 16 divisors (see below), whose sum is σ = 2677248. Its totient is φ = 1900800.

The previous prime is 2267677. The next prime is 2267701. The reversal of 2267681 is 1867622.

It is a cyclic number.

It is not a de Polignac number, because 2267681 - 2² = 2267677 is a prime.

It is a super-2 number, since 2×2267681² = 10284754235522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2267611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6686 + ... + 7016.

It is an arithmetic number, because the mean of its divisors is an integer number (167328).

2^2267681 is an apocalyptic number.

It is an amenable number.

2267681 is a deficient number, since it is larger than the sum of its proper divisors (409567).

2267681 is a wasteful number, since it uses less digits than its factorization.

2267681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392.

The product of its digits is 8064, while the sum is 32.

The square root of 2267681 is about 1505.8821335018. The cubic root of 2267681 is about 131.3794140021.

The spelling of 2267681 in words is "two million, two hundred sixty-seven thousand, six hundred eighty-one".