2405005 has 4 divisors (see below), whose sum is σ = 2886012. Its totient is φ = 1924000.

The previous prime is 2405003. The next prime is 2405021. The reversal of 2405005 is 5005042.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1432809 + 972196 = 1197^2 + 986^2 .

It is not a de Polignac number, because 2405005 - 2¹ = 2405003 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2405005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2405003) 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, 240496 + ... + 240505.

It is an arithmetic number, because the mean of its divisors is an integer number (721503).

2^2405005 is an apocalyptic number.

It is an amenable number.

2405005 is a deficient number, since it is larger than the sum of its proper divisors (481007).

2405005 is an equidigital number, since it uses as much as digits as its factorization.

2405005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481006.

The product of its (nonzero) digits is 200, while the sum is 16.

The square root of 2405005 is about 1550.8078539909. The cubic root of 2405005 is about 133.9795951703.

The spelling of 2405005 in words is "two million, four hundred five thousand, five".