2644023 has 8 divisors (see below), whose sum is σ = 3547648. Its totient is φ = 1751544.

The previous prime is 2644007. The next prime is 2644039. The reversal of 2644023 is 3204462.

It is an interprime number because it is at equal distance from previous prime (2644007) and next prime (2644039).

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

It is not a de Polignac number, because 2644023 - 2⁴ = 2644007 is a prime.

It is a d-powerful number, because it can be written as 2¹⁹ + 6² + 4³ + 4⁵ + 0 + 2¹⁹ + 3¹³ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2644003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2215 + ... + 3192.

It is an arithmetic number, because the mean of its divisors is an integer number (443456).

2^2644023 is an apocalyptic number.

2644023 is a deficient number, since it is larger than the sum of its proper divisors (903625).

2644023 is a wasteful number, since it uses less digits than its factorization.

2644023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5573.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 2644023 is about 1626.0452023237. The cubic root of 2644023 is about 138.2786325879.

Adding to 2644023 its reverse (3204462), we get a palindrome (5848485).

The spelling of 2644023 in words is "two million, six hundred forty-four thousand, twenty-three".