1304039 has 4 divisors (see below), whose sum is σ = 1422600. Its totient is φ = 1185480.

The previous prime is 1304033. The next prime is 1304071. The reversal of 1304039 is 9304031.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1304039 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 1304039.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1304033) 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, 59264 + ... + 59285.

It is an arithmetic number, because the mean of its divisors is an integer number (355650).

2^1304039 is an apocalyptic number.

1304039 is a deficient number, since it is larger than the sum of its proper divisors (118561).

1304039 is a wasteful number, since it uses less digits than its factorization.

1304039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118560.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 1304039 is about 1141.9452701421. The cubic root of 1304039 is about 109.2522005746.

The spelling of 1304039 in words is "one million, three hundred four thousand, thirty-nine".