2405244 has 12 divisors (see below), whose sum is σ = 5612264. Its totient is φ = 801744.

The previous prime is 2405243. The next prime is 2405251. The reversal of 2405244 is 4425042.

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

It is a hoax number, since the sum of its digits (21) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 2405244.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2405243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100207 + ... + 100230.

2^2405244 is an apocalyptic number.

It is an amenable number.

2405244 is an abundant number, since it is smaller than the sum of its proper divisors (3207020).

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

2405244 is a wasteful number, since it uses less digits than its factorization.

2405244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200444 (or 200442 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 21.

The square root of 2405244 is about 1550.8849086892. The cubic root of 2405244 is about 133.9840331462.

The spelling of 2405244 in words is "two million, four hundred five thousand, two hundred forty-four".