2226681 has 6 divisors (see below), whose sum is σ = 3216330. Its totient is φ = 1484448.

The previous prime is 2226673. The next prime is 2226701. The reversal of 2226681 is 1866222.

It can be written as a sum of positive squares in only one way, i.e., 2223081 + 3600 = 1491^2 + 60^2 .

It is not a de Polignac number, because 2226681 - 2³ = 2226673 is a prime.

It is a super-2 number, since 2×2226681² = 9916216551522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2224681) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 123696 + ... + 123713.

It is an arithmetic number, because the mean of its divisors is an integer number (536055).

2^2226681 is an apocalyptic number.

It is an amenable number.

2226681 is a deficient number, since it is larger than the sum of its proper divisors (989649).

2226681 is a wasteful number, since it uses less digits than its factorization.

2226681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247415 (or 247412 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 2226681 is about 1492.2067551114. The cubic root of 2226681 is about 130.5828073554.

It can be divided in two parts, 222 and 6681, that added together give a triangular number (6903 = T₁₁₇).

The spelling of 2226681 in words is "two million, two hundred twenty-six thousand, six hundred eighty-one".