1304329605 has 16 divisors (see below), whose sum is σ = 2092193664. Its totient is φ = 693887040.

The previous prime is 1304329603. The next prime is 1304329639. The reversal of 1304329605 is 5069234031.

It is not a de Polignac number, because 1304329605 - 2¹ = 1304329603 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1304329601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103561 + ... + 115470.

It is an arithmetic number, because the mean of its divisors is an integer number (130762104).

Almost surely, 2^1304329605 is an apocalyptic number.

1304329605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1304329605 is a deficient number, since it is larger than the sum of its proper divisors (787864059).

1304329605 is a wasteful number, since it uses less digits than its factorization.

1304329605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219436.

The product of its (nonzero) digits is 19440, while the sum is 33.

The square root of 1304329605 is about 36115.5036653236. The cubic root of 1304329605 is about 1092.6031558693.

The spelling of 1304329605 in words is "one billion, three hundred four million, three hundred twenty-nine thousand, six hundred five".