2226861 has 24 divisors (see below), whose sum is σ = 3960320. Its totient is φ = 1174176.

The previous prime is 2226859. The next prime is 2226893. The reversal of 2226861 is 1686222.

It is not a de Polignac number, because 2226861 - 2¹ = 2226859 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2226811) 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 23 ways as a sum of consecutive naturals, for example, 541 + ... + 2178.

2^2226861 is an apocalyptic number.

2226861 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2226861 is a deficient number, since it is larger than the sum of its proper divisors (1733459).

2226861 is a wasteful number, since it uses less digits than its factorization.

2226861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2745 (or 2742 counting only the distinct ones).

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

The square root of 2226861 is about 1492.2670672504. The cubic root of 2226861 is about 130.5863259364.

The spelling of 2226861 in words is "two million, two hundred twenty-six thousand, eight hundred sixty-one".