1423433443 has 4 divisors (see below), whose sum is σ = 1507164840. Its totient is φ = 1339702048.

The previous prime is 1423433381. The next prime is 1423433461. The reversal of 1423433443 is 3443343241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3443343241 = 13 ⋅264872557.

It is a cyclic number.

It is not a de Polignac number, because 1423433443 - 2⁹ = 1423432931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1423430443) 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, 41865673 + ... + 41865706.

It is an arithmetic number, because the mean of its divisors is an integer number (376791210).

Almost surely, 2^1423433443 is an apocalyptic number.

1423433443 is a deficient number, since it is larger than the sum of its proper divisors (83731397).

1423433443 is an equidigital number, since it uses as much as digits as its factorization.

1423433443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83731396.

The product of its digits is 41472, while the sum is 31.

The square root of 1423433443 is about 37728.4169161655. The cubic root of 1423433443 is about 1124.8960412250.

Adding to 1423433443 its reverse (3443343241), we get a palindrome (4866776684).

The spelling of 1423433443 in words is "one billion, four hundred twenty-three million, four hundred thirty-three thousand, four hundred forty-three".