2405655 has 36 divisors (see below), whose sum is σ = 4855032. Its totient is φ = 1098720.

The previous prime is 2405651. The next prime is 2405677. The reversal of 2405655 is 5565042.

2405655 is a `hidden beast` number, since 2 + 4 + 0 + 5 + 655 = 666.

2405655 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2405655 - 2² = 2405651 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2405651) 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 in 35 ways as a sum of consecutive naturals, for example, 1660 + ... + 2750.

It is an arithmetic number, because the mean of its divisors is an integer number (134862).

2^2405655 is an apocalyptic number.

2405655 is an abundant number, since it is smaller than the sum of its proper divisors (2449377).

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

2405655 is a wasteful number, since it uses less digits than its factorization.

2405655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1116 (or 1106 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 2405655 is about 1551.0174080261. The cubic root of 2405655 is about 133.9916642918.

The spelling of 2405655 in words is "two million, four hundred five thousand, six hundred fifty-five".