2226581 has 8 divisors (see below), whose sum is σ = 2560320. Its totient is φ = 1896768.

The previous prime is 2226571. The next prime is 2226593. The reversal of 2226581 is 1856222.

2226581 is digitally balanced in base 8, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 2226581 - 2⁶ = 2226517 is a prime.

It is a super-2 number, since 2×2226581² = 9915325899122, which contains 22 as substring.

2226581 is strictly pandigital in base 8.

It is a self number, because there is not a number n which added to its sum of digits gives 2226581.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2226571) 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, 365 + ... + 2141.

It is an arithmetic number, because the mean of its divisors is an integer number (320040).

2^2226581 is an apocalyptic number.

It is an amenable number.

2226581 is a deficient number, since it is larger than the sum of its proper divisors (333739).

2226581 is a wasteful number, since it uses less digits than its factorization.

2226581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1963.

The product of its digits is 1920, while the sum is 26.

The square root of 2226581 is about 1492.1732473141. The cubic root of 2226581 is about 130.5808525063.

The spelling of 2226581 in words is "two million, two hundred twenty-six thousand, five hundred eighty-one".