1349328309 has 8 divisors (see below), whose sum is σ = 2056119360. Its totient is φ = 771044736.

The previous prime is 1349328293. The next prime is 1349328319. The reversal of 1349328309 is 9038239431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1349328309 - 2⁴ = 1349328293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1349328319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32126844 + ... + 32126885.

It is an arithmetic number, because the mean of its divisors is an integer number (257014920).

Almost surely, 2^1349328309 is an apocalyptic number.

It is an amenable number.

1349328309 is a deficient number, since it is larger than the sum of its proper divisors (706791051).

1349328309 is an equidigital number, since it uses as much as digits as its factorization.

1349328309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64253739.

The product of its (nonzero) digits is 139968, while the sum is 42.

The square root of 1349328309 is about 36733.2044477473. The cubic root of 1349328309 is about 1105.0261206058.

The spelling of 1349328309 in words is "one billion, three hundred forty-nine million, three hundred twenty-eight thousand, three hundred nine".