2505444 has 12 divisors (see below), whose sum is σ = 5846064. Its totient is φ = 835144.

The previous prime is 2505421. The next prime is 2505457. The reversal of 2505444 is 4445052.

2505444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is an Ulam number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 104382 + ... + 104405.

It is an arithmetic number, because the mean of its divisors is an integer number (487172).

2^2505444 is an apocalyptic number.

It is an amenable number.

2505444 is an abundant number, since it is smaller than the sum of its proper divisors (3340620).

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

2505444 is a wasteful number, since it uses less digits than its factorization.

2505444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208794 (or 208792 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 24.

The square root of 2505444 is about 1582.8594378529. The cubic root of 2505444 is about 135.8193246705.

The spelling of 2505444 in words is "two million, five hundred five thousand, four hundred forty-four".