1304299649 has 4 divisors (see below), whose sum is σ = 1307244336. Its totient is φ = 1301354964.

The previous prime is 1304299639. The next prime is 1304299681. The reversal of 1304299649 is 9469924031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9469924031 = 251 ⋅37728781.

It is a cyclic number.

It is not a de Polignac number, because 1304299649 - 2²⁴ = 1287522433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1304299639) by changing a digit.

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, 1471679 + ... + 1472564.

It is an arithmetic number, because the mean of its divisors is an integer number (326811084).

Almost surely, 2^1304299649 is an apocalyptic number.

It is an amenable number.

1304299649 is a deficient number, since it is larger than the sum of its proper divisors (2944687).

1304299649 is an equidigital number, since it uses as much as digits as its factorization.

1304299649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2944686.

The product of its (nonzero) digits is 419904, while the sum is 47.

The square root of 1304299649 is about 36115.0889380048. The cubic root of 1304299649 is about 1092.5947913499.

The spelling of 1304299649 in words is "one billion, three hundred four million, two hundred ninety-nine thousand, six hundred forty-nine".