1380706943 has 8 divisors (see below), whose sum is σ = 1721400960. Its totient is φ = 1075875480.

The previous prime is 1380706933. The next prime is 1380706963. The reversal of 1380706943 is 3496070831.

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 1380706943 - 2¹⁸ = 1380444799 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 1380706943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1380706933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8965553 + ... + 8965706.

It is an arithmetic number, because the mean of its divisors is an integer number (215175120).

Almost surely, 2^1380706943 is an apocalyptic number.

1380706943 is a deficient number, since it is larger than the sum of its proper divisors (340694017).

1380706943 is a wasteful number, since it uses less digits than its factorization.

1380706943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17931277.

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 1380706943 is about 37157.8651566529. The cubic root of 1380706943 is about 1113.5263614559.

The spelling of 1380706943 in words is "one billion, three hundred eighty million, seven hundred six thousand, nine hundred forty-three".