2226649 has 4 divisors (see below), whose sum is σ = 2303460. Its totient is φ = 2149840.

The previous prime is 2226647. The next prime is 2226659. The reversal of 2226649 is 9466222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1708249 + 518400 = 1307^2 + 720^2 .

It is a cyclic number.

It is not a de Polignac number, because 2226649 - 2¹ = 2226647 is a prime.

It is a d-powerful number, because it can be written as 2⁶ + 2¹² + 2¹⁸ + 6⁷ + 6⁸ + 4³ + 9³ .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2226649.

It is not an unprimeable number, because it can be changed into a prime (2226647) 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 3 ways as a sum of consecutive naturals, for example, 38362 + ... + 38419.

It is an arithmetic number, because the mean of its divisors is an integer number (575865).

2^2226649 is an apocalyptic number.

2226649 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

2226649 is a deficient number, since it is larger than the sum of its proper divisors (76811).

2226649 is an equidigital number, since it uses as much as digits as its factorization.

2226649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76810.

The product of its digits is 10368, while the sum is 31.

The square root of 2226649 is about 1492.1960326981. The cubic root of 2226649 is about 130.5821818101.

The spelling of 2226649 in words is "two million, two hundred twenty-six thousand, six hundred forty-nine".