2405844 has 36 divisors (see below), whose sum is σ = 6950944. Its totient is φ = 687312.

The previous prime is 2405833. The next prime is 2405863. The reversal of 2405844 is 4485042.

2405844 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 (36).

It is a congruent 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 11 ways as a sum of consecutive naturals, for example, 4522 + ... + 5025.

2^2405844 is an apocalyptic number.

It is an amenable number.

2405844 is an abundant number, since it is smaller than the sum of its proper divisors (4545100).

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

2405844 is a wasteful number, since it uses less digits than its factorization.

2405844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9564 (or 9559 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

The square root of 2405844 is about 1551.0783345789. The cubic root of 2405844 is about 133.9951732129.

It can be divided in two parts, 2405 and 844, that added together give a square (3249 = 57²).

The spelling of 2405844 in words is "two million, four hundred five thousand, eight hundred forty-four".