1443340401 has 4 divisors (see below), whose sum is σ = 1924453872. Its totient is φ = 962226932.

The previous prime is 1443340391. The next prime is 1443340403. The reversal of 1443340401 is 1040433441.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1040433441 = 3 ⋅346811147.

It is a cyclic number.

It is not a de Polignac number, because 1443340401 - 2¹⁰ = 1443339377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1443340403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 240556731 + ... + 240556736.

It is an arithmetic number, because the mean of its divisors is an integer number (481113468).

Almost surely, 2^1443340401 is an apocalyptic number.

It is an amenable number.

1443340401 is a deficient number, since it is larger than the sum of its proper divisors (481113471).

1443340401 is an equidigital number, since it uses as much as digits as its factorization.

1443340401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481113470.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 1443340401 is about 37991.3200744591. The cubic root of 1443340401 is about 1130.1157374863.

Adding to 1443340401 its reverse (1040433441), we get a palindrome (2483773842).

The spelling of 1443340401 in words is "one billion, four hundred forty-three million, three hundred forty thousand, four hundred one".