2661344 has 36 divisors (see below), whose sum is σ = 6043464. Its totient is φ = 1130112.

The previous prime is 2661341. The next prime is 2661371. The reversal of 2661344 is 4431662.

It is a d-powerful number, because it can be written as 2¹¹ + 6 + 6 + 1 + 3¹³ + 4⁷ + 4¹⁰ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2661341) 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, 24362 + ... + 24470.

It is an arithmetic number, because the mean of its divisors is an integer number (167874).

2^2661344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2661344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3021732).

2661344 is an abundant number, since it is smaller than the sum of its proper divisors (3382120).

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

2661344 is an equidigital number, since it uses as much as digits as its factorization.

2661344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235 (or 118 counting only the distinct ones).

The product of its digits is 3456, while the sum is 26.

The square root of 2661344 is about 1631.3626206334. The cubic root of 2661344 is about 138.5799301426.

The spelling of 2661344 in words is "two million, six hundred sixty-one thousand, three hundred forty-four".