1304668305 has 24 divisors (see below), whose sum is σ = 2298502440. Its totient is φ = 684414720.

The previous prime is 1304668283. The next prime is 1304668361. The reversal of 1304668305 is 5038664031.

It can be written as a sum of positive squares in 4 ways, for example, as 8020224 + 1296648081 = 2832^2 + 36009^2 .

It is not a de Polignac number, because 1304668305 - 2⁶ = 1304668241 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1304668305.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 234900 + ... + 240389.

It is an arithmetic number, because the mean of its divisors is an integer number (95770935).

Almost surely, 2^1304668305 is an apocalyptic number.

1304668305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1304668305 is a deficient number, since it is larger than the sum of its proper divisors (993834135).

1304668305 is a wasteful number, since it uses less digits than its factorization.

1304668305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475361 (or 475358 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 1304668305 is about 36120.1924828758. The cubic root of 1304668305 is about 1092.6977210927.

The spelling of 1304668305 in words is "one billion, three hundred four million, six hundred sixty-eight thousand, three hundred five".