2523644 has 6 divisors (see below), whose sum is σ = 4416384. Its totient is φ = 1261820.

The previous prime is 2523643. The next prime is 2523671. The reversal of 2523644 is 4463252.

2523644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2523641) 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 as a sum of consecutive naturals, namely, 315452 + ... + 315459.

It is an arithmetic number, because the mean of its divisors is an integer number (736064).

2^2523644 is an apocalyptic number.

It is an amenable number.

2523644 is a deficient number, since it is larger than the sum of its proper divisors (1892740).

2523644 is a wasteful number, since it uses less digits than its factorization.

2523644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 630915 (or 630913 counting only the distinct ones).

The product of its digits is 5760, while the sum is 26.

The square root of 2523644 is about 1588.5981241334. The cubic root of 2523644 is about 136.1474036160.

Adding to 2523644 its reverse (4463252), we get a palindrome (6986896).

The spelling of 2523644 in words is "two million, five hundred twenty-three thousand, six hundred forty-four".