1304004235 has 4 divisors (see below), whose sum is σ = 1564805088. Its totient is φ = 1043203384.

The previous prime is 1304004217. The next prime is 1304004241. The reversal of 1304004235 is 5324004031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5324004031 = 733 ⋅7263307.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1304004235 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130400419 + ... + 130400428.

It is an arithmetic number, because the mean of its divisors is an integer number (391201272).

Almost surely, 2^1304004235 is an apocalyptic number.

1304004235 is a deficient number, since it is larger than the sum of its proper divisors (260800853).

1304004235 is an equidigital number, since it uses as much as digits as its factorization.

1304004235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260800852.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 1304004235 is about 36110.9988092271. The cubic root of 1304004235 is about 1092.5122969709.

Adding to 1304004235 its reverse (5324004031), we get a palindrome (6628008266).

The spelling of 1304004235 in words is "one billion, three hundred four million, four thousand, two hundred thirty-five".