1309411968 has 32 divisors (see below), whose sum is σ = 3478126560. Its totient is φ = 436470528.

The previous prime is 1309411967. The next prime is 1309411979. The reversal of 1309411968 is 8691149031.

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (1309411967) 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, 1704580 + ... + 1705347.

It is an arithmetic number, because the mean of its divisors is an integer number (108691455).

Almost surely, 2^1309411968 is an apocalyptic number.

It is an amenable number.

1309411968 is an abundant number, since it is smaller than the sum of its proper divisors (2168714592).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1309411968 is an equidigital number, since it uses as much as digits as its factorization.

1309411968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3409944 (or 3409932 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 42.

The square root of 1309411968 is about 36185.7978770677. The cubic root of 1309411968 is about 1094.0204379517.

The spelling of 1309411968 in words is "one billion, three hundred nine million, four hundred eleven thousand, nine hundred sixty-eight".