1399339349 has 8 divisors (see below), whose sum is σ = 1494289920. Its totient is φ = 1307502000.

The previous prime is 1399339339. The next prime is 1399339351. The reversal of 1399339349 is 9439339931.

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 1399339349 - 2¹² = 1399335253 is a prime.

It is a super-2 number, since 2×1399339349² = 3916301227319487602, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1399339349.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1399339339) 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, 777377 + ... + 779174.

It is an arithmetic number, because the mean of its divisors is an integer number (186786240).

Almost surely, 2^1399339349 is an apocalyptic number.

It is an amenable number.

1399339349 is a deficient number, since it is larger than the sum of its proper divisors (94950571).

1399339349 is a wasteful number, since it uses less digits than its factorization.

1399339349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1556611.

The product of its digits is 2125764, while the sum is 53.

The square root of 1399339349 is about 37407.7445056502. The cubic root of 1399339349 is about 1118.5129470214.

The spelling of 1399339349 in words is "one billion, three hundred ninety-nine million, three hundred thirty-nine thousand, three hundred forty-nine".