3004405 has 4 divisors (see below), whose sum is σ = 3605292. Its totient is φ = 2403520.

The previous prime is 3004403. The next prime is 3004409. The reversal of 3004405 is 5044003.

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 2353156 + 651249 = 1534^2 + 807^2 .

It is not a de Polignac number, because 3004405 - 2¹ = 3004403 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3004403) 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, 300436 + ... + 300445.

It is an arithmetic number, because the mean of its divisors is an integer number (901323).

Almost surely, 2^3004405 is an apocalyptic number.

It is an amenable number.

3004405 is a deficient number, since it is larger than the sum of its proper divisors (600887).

3004405 is an equidigital number, since it uses as much as digits as its factorization.

3004405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600886.

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 3004405 is about 1733.3219550909. The cubic root of 3004405 is about 144.2955126129.

Adding to 3004405 its reverse (5044003), we get a palindrome (8048408).

The spelling of 3004405 in words is "three million, four thousand, four hundred five".