2644323 has 16 divisors (see below), whose sum is σ = 3874176. Its totient is φ = 1591040.

The previous prime is 2644277. The next prime is 2644339. The reversal of 2644323 is 3234462.

It is a happy number.

It is not a de Polignac number, because 2644323 - 2⁸ = 2644067 is a prime.

2644323 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2644293 and 2644302.

It is not an unprimeable number, because it can be changed into a prime (2644823) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7315 + ... + 7667.

It is an arithmetic number, because the mean of its divisors is an integer number (242136).

2^2644323 is an apocalyptic number.

2644323 is a deficient number, since it is larger than the sum of its proper divisors (1229853).

2644323 is a wasteful number, since it uses less digits than its factorization.

2644323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 594.

The product of its digits is 3456, while the sum is 24.

The square root of 2644323 is about 1626.1374480652. The cubic root of 2644323 is about 138.2838622476.

Adding to 2644323 its reverse (3234462), we get a palindrome (5878785).

The spelling of 2644323 in words is "two million, six hundred forty-four thousand, three hundred twenty-three".