1000423443 has 8 divisors (see below), whose sum is σ = 1335981456. Its totient is φ = 665907200.

The previous prime is 1000423439. The next prime is 1000423451. The reversal of 1000423443 is 3443240001.

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 1000423443 - 2² = 1000423439 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1000423453) 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, 258198 + ... + 262043.

It is an arithmetic number, because the mean of its divisors is an integer number (166997682).

Almost surely, 2^1000423443 is an apocalyptic number.

1000423443 is a deficient number, since it is larger than the sum of its proper divisors (335558013).

1000423443 is an equidigital number, since it uses as much as digits as its factorization.

1000423443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520885.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 1000423443 is about 31629.4711147689. The cubic root of 1000423443 is about 1000.1411277487.

Adding to 1000423443 its reverse (3443240001), we get a palindrome (4443663444).

The spelling of 1000423443 in words is "one billion, four hundred twenty-three thousand, four hundred forty-three".