1349732879 has 8 divisors (see below), whose sum is σ = 1512231888. Its totient is φ = 1193866560.

The previous prime is 1349732873. The next prime is 1349732941. The reversal of 1349732879 is 9782379431.

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

It is a cyclic number.

It is not a de Polignac number, because 1349732879 - 2²⁰ = 1348684303 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1349732879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1349732873) 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, 1657742 + ... + 1658555.

It is an arithmetic number, because the mean of its divisors is an integer number (189028986).

Almost surely, 2^1349732879 is an apocalyptic number.

1349732879 is a deficient number, since it is larger than the sum of its proper divisors (162499009).

1349732879 is a wasteful number, since it uses less digits than its factorization.

1349732879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3316345.

The product of its digits is 2286144, while the sum is 53.

The square root of 1349732879 is about 36738.7109055285. The cubic root of 1349732879 is about 1105.1365498076.

The spelling of 1349732879 in words is "one billion, three hundred forty-nine million, seven hundred thirty-two thousand, eight hundred seventy-nine".