1443993343 has 4 divisors (see below), whose sum is σ = 1555069768. Its totient is φ = 1332916920.

The previous prime is 1443993329. The next prime is 1443993371. The reversal of 1443993343 is 3433993441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3433993441 = 509 ⋅6746549.

It is a cyclic number.

It is not a de Polignac number, because 1443993343 - 2¹⁷ = 1443862271 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 1443993343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1443993323) 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, 55538193 + ... + 55538218.

It is an arithmetic number, because the mean of its divisors is an integer number (388767442).

Almost surely, 2^1443993343 is an apocalyptic number.

1443993343 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1443993343 is a deficient number, since it is larger than the sum of its proper divisors (111076425).

1443993343 is a wasteful number, since it uses less digits than its factorization.

1443993343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111076424.

The product of its digits is 419904, while the sum is 43.

The square root of 1443993343 is about 37999.9124077938. The cubic root of 1443993343 is about 1130.2861266720.

The spelling of 1443993343 in words is "one billion, four hundred forty-three million, nine hundred ninety-three thousand, three hundred forty-three".