2904305 has 12 divisors (see below), whose sum is σ = 3565980. Its totient is φ = 2270592.

The previous prime is 2904299. The next prime is 2904311. The reversal of 2904305 is 5034092.

It is an interprime number because it is at equal distance from previous prime (2904299) and next prime (2904311).

It can be written as a sum of positive squares in 6 ways, for example, as 27889 + 2876416 = 167^2 + 1696^2 .

It is not a de Polignac number, because 2904305 - 2¹⁴ = 2887921 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26591 + ... + 26699.

It is an arithmetic number, because the mean of its divisors is an integer number (297165).

2^2904305 is an apocalyptic number.

It is an amenable number.

2904305 is a deficient number, since it is larger than the sum of its proper divisors (661675).

2904305 is an equidigital number, since it uses as much as digits as its factorization.

2904305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260 (or 187 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 2904305 is about 1704.2021593696. The cubic root of 2904305 is about 142.6748443746.

Adding to 2904305 its reverse (5034092), we get a palindrome (7938397).

The spelling of 2904305 in words is "two million, nine hundred four thousand, three hundred five".