1443421343 has 8 divisors (see below), whose sum is σ = 1776518688. Its totient is φ = 1142047584.

The previous prime is 1443421337. The next prime is 1443421351. The reversal of 1443421343 is 3431243441.

It is a happy number.

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 1443421343 - 2¹⁸ = 1443159199 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1443421943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7930796 + ... + 7930977.

It is an arithmetic number, because the mean of its divisors is an integer number (222064836).

Almost surely, 2^1443421343 is an apocalyptic number.

1443421343 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1443421343 is a deficient number, since it is larger than the sum of its proper divisors (333097345).

1443421343 is a wasteful number, since it uses less digits than its factorization.

1443421343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15861793.

The product of its digits is 13824, while the sum is 29.

The square root of 1443421343 is about 37992.3853291683. The cubic root of 1443421343 is about 1130.1368625834.

Adding to 1443421343 its reverse (3431243441), we get a palindrome (4874664784).

The spelling of 1443421343 in words is "one billion, four hundred forty-three million, four hundred twenty-one thousand, three hundred forty-three".