1392881443 has 4 divisors (see below), whose sum is σ = 1400174208. Its totient is φ = 1385588680.

The previous prime is 1392881419. The next prime is 1392881453. The reversal of 1392881443 is 3441882931.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1392881443 - 2¹⁷ = 1392750371 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 1392881443.

It is not an unprimeable number, because it can be changed into a prime (1392881453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3646096 + ... + 3646477.

It is an arithmetic number, because the mean of its divisors is an integer number (350043552).

Almost surely, 2^1392881443 is an apocalyptic number.

1392881443 is a deficient number, since it is larger than the sum of its proper divisors (7292765).

1392881443 is an equidigital number, since it uses as much as digits as its factorization.

1392881443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7292764.

The product of its digits is 165888, while the sum is 43.

The square root of 1392881443 is about 37321.3269190687. The cubic root of 1392881443 is about 1116.7896595895.

The spelling of 1392881443 in words is "one billion, three hundred ninety-two million, eight hundred eighty-one thousand, four hundred forty-three".