2644226 has 8 divisors (see below), whose sum is σ = 4271484. Its totient is φ = 1220400.

The previous prime is 2644219. The next prime is 2644247. The reversal of 2644226 is 6224462.

It can be written as a sum of positive squares in 2 ways, for example, as 1836025 + 808201 = 1355^2 + 899^2 .

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

It is a super-2 number, since 2×2644226² = 13983862278152, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26), and also a Moran number because the ratio is a prime number: 101701 = 2644226 / (2 + 6 + 4 + 4 + 2 + 2 + 6).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2644195 and 2644204.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50825 + ... + 50876.

2^2644226 is an apocalyptic number.

2644226 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2644226 is a deficient number, since it is larger than the sum of its proper divisors (1627258).

2644226 is a wasteful number, since it uses less digits than its factorization.

2644226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101716.

The product of its digits is 4608, while the sum is 26.

The square root of 2644226 is about 1626.1076225146. The cubic root of 2644226 is about 138.2821713676.

Adding to 2644226 its reverse (6224462), we get a palindrome (8868688).

The spelling of 2644226 in words is "two million, six hundred forty-four thousand, two hundred twenty-six".