1304395 has 4 divisors (see below), whose sum is σ = 1565280. Its totient is φ = 1043512.

The previous prime is 1304389. The next prime is 1304411. The reversal of 1304395 is 5934031.

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

It is a cyclic number.

It is not a de Polignac number, because 1304395 - 2⁷ = 1304267 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130435 + ... + 130444.

It is an arithmetic number, because the mean of its divisors is an integer number (391320).

2^1304395 is an apocalyptic number.

1304395 is a deficient number, since it is larger than the sum of its proper divisors (260885).

1304395 is an equidigital number, since it uses as much as digits as its factorization.

1304395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260884.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 1304395 is about 1142.1011338756. The cubic root of 1304395 is about 109.2621415464.

The spelling of 1304395 in words is "one million, three hundred four thousand, three hundred ninety-five".