2644541 has 8 divisors (see below), whose sum is σ = 2762424. Its totient is φ = 2529280.

The previous prime is 2644531. The next prime is 2644547. The reversal of 2644541 is 1454462.

2644541 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 52441 + 2592100 = 229^2 + 1610^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2644541 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2644541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2644547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1565 + ... + 2781.

It is an arithmetic number, because the mean of its divisors is an integer number (345303).

2^2644541 is an apocalyptic number.

It is an amenable number.

2644541 is a deficient number, since it is larger than the sum of its proper divisors (117883).

2644541 is a wasteful number, since it uses less digits than its factorization.

2644541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1311.

The product of its digits is 3840, while the sum is 26.

The square root of 2644541 is about 1626.2044766880. The cubic root of 2644541 is about 138.2876622187.

The spelling of 2644541 in words is "two million, six hundred forty-four thousand, five hundred forty-one".