1380347379 has 16 divisors (see below), whose sum is σ = 2061066240. Its totient is φ = 912983400.

The previous prime is 1380347377. The next prime is 1380347399. The reversal of 1380347379 is 9737430831.

It is not a de Polignac number, because 1380347379 - 2¹ = 1380347377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1380347377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 197847 + ... + 204704.

It is an arithmetic number, because the mean of its divisors is an integer number (128816640).

Almost surely, 2^1380347379 is an apocalyptic number.

1380347379 is a deficient number, since it is larger than the sum of its proper divisors (680718861).

1380347379 is a wasteful number, since it uses less digits than its factorization.

1380347379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402687 (or 402681 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 45.

The square root of 1380347379 is about 37153.0265119815. The cubic root of 1380347379 is about 1113.4296914720.

The spelling of 1380347379 in words is "one billion, three hundred eighty million, three hundred forty-seven thousand, three hundred seventy-nine".