1380000843 has 12 divisors (see below), whose sum is σ = 2146668160. Its totient is φ = 849231216.

The previous prime is 1380000827. The next prime is 1380000871. The reversal of 1380000843 is 3480000831.

It is not a de Polignac number, because 1380000843 - 2⁴ = 1380000827 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1380000883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5897323 + ... + 5897556.

Almost surely, 2^1380000843 is an apocalyptic number.

1380000843 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1380000843 is a deficient number, since it is larger than the sum of its proper divisors (766667317).

1380000843 is a wasteful number, since it uses less digits than its factorization.

1380000843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11794898 (or 11794895 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 1380000843 is about 37148.3625884103. The cubic root of 1380000843 is about 1113.3365082220.

The spelling of 1380000843 in words is "one billion, three hundred eighty million, eight hundred forty-three", and thus it is an aban number.