2644026 has 64 divisors (see below), whose sum is σ = 6773760. Its totient is φ = 668160.

The previous prime is 2644007. The next prime is 2644039. The reversal of 2644026 is 6204462.

It is a junction number, because it is equal to n+sod(n) for n = 2643987 and 2644005.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27210 + ... + 27306.

It is an arithmetic number, because the mean of its divisors is an integer number (105840).

2^2644026 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2644026, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3386880).

2644026 is an abundant number, since it is smaller than the sum of its proper divisors (4129734).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2644026 is a wasteful number, since it uses less digits than its factorization.

2644026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 2644026 is about 1626.0461248070. The cubic root of 2644026 is about 138.2786848865.

Adding to 2644026 its reverse (6204462), we get a palindrome (8848488).

The spelling of 2644026 in words is "two million, six hundred forty-four thousand, twenty-six".