1421041443 has 8 divisors (see below), whose sum is σ = 1895086848. Its totient is φ = 947178504.

The previous prime is 1421041439. The next prime is 1421041451. The reversal of 1421041443 is 3441401241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1421041443 - 2² = 1421041439 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1421041403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26271 + ... + 59432.

It is an arithmetic number, because the mean of its divisors is an integer number (236885856).

Almost surely, 2^1421041443 is an apocalyptic number.

1421041443 is a deficient number, since it is larger than the sum of its proper divisors (474045405).

1421041443 is an equidigital number, since it uses as much as digits as its factorization.

1421041443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91233.

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 1421041443 is about 37696.7033439265. The cubic root of 1421041443 is about 1124.2655797233.

Adding to 1421041443 its reverse (3441401241), we get a palindrome (4862442684).

The spelling of 1421041443 in words is "one billion, four hundred twenty-one million, forty-one thousand, four hundred forty-three".