2644227 has 6 divisors (see below), whose sum is σ = 3819452. Its totient is φ = 1762812.

The previous prime is 2644219. The next prime is 2644247. The reversal of 2644227 is 7224462.

It is a happy number.

It is not a de Polignac number, because 2644227 - 2³ = 2644219 is a prime.

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 2644227.

It is not an unprimeable number, because it can be changed into a prime (2644247) 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, 146893 + ... + 146910.

2^2644227 is an apocalyptic number.

2644227 is a deficient number, since it is larger than the sum of its proper divisors (1175225).

2644227 is a wasteful number, since it uses less digits than its factorization.

2644227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293809 (or 293806 counting only the distinct ones).

The product of its digits is 5376, while the sum is 27.

The square root of 2644227 is about 1626.1079299973. The cubic root of 2644227 is about 138.2821887995.

Adding to 2644227 its reverse (7224462), we get a palindrome (9868689).

It can be divided in two parts, 26 and 44227, that added together give a triangular number (44253 = T₂₉₇).

The spelling of 2644227 in words is "two million, six hundred forty-four thousand, two hundred twenty-seven".