1380718373 has 4 divisors (see below), whose sum is σ = 1380794688. Its totient is φ = 1380642060.

The previous prime is 1380718357. The next prime is 1380718421. The reversal of 1380718373 is 3738170831.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1380718373 - 2⁴ = 1380718357 is a prime.

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 1380718373.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1380718303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6068 + ... + 52898.

It is an arithmetic number, because the mean of its divisors is an integer number (345198672).

Almost surely, 2^1380718373 is an apocalyptic number.

It is an amenable number.

1380718373 is a deficient number, since it is larger than the sum of its proper divisors (76315).

1380718373 is an equidigital number, since it uses as much as digits as its factorization.

1380718373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76314.

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 1380718373 is about 37158.0189595732. The cubic root of 1380718373 is about 1113.5294341743.

The spelling of 1380718373 in words is "one billion, three hundred eighty million, seven hundred eighteen thousand, three hundred seventy-three".