2644461 has 8 divisors (see below), whose sum is σ = 3917760. Its totient is φ = 1762956.

The previous prime is 2644451. The next prime is 2644489. The reversal of 2644461 is 1644462.

It is not a de Polignac number, because 2644461 - 2⁵ = 2644429 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 97943 = 2644461 / (2 + 6 + 4 + 4 + 4 + 6 + 1).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2644451) 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, 48945 + ... + 48998.

It is an arithmetic number, because the mean of its divisors is an integer number (489720).

2^2644461 is an apocalyptic number.

It is an amenable number.

2644461 is a deficient number, since it is larger than the sum of its proper divisors (1273299).

2644461 is an equidigital number, since it uses as much as digits as its factorization.

2644461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97952 (or 97946 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

The square root of 2644461 is about 1626.1798793491. The cubic root of 2644461 is about 138.2862677582.

Subtracting from 2644461 its reverse (1644462), we obtain a palindrome (999999).

The spelling of 2644461 in words is "two million, six hundred forty-four thousand, four hundred sixty-one".