420443043 has 8 divisors (see below), whose sum is σ = 568486656. Its totient is φ = 276347400.

The previous prime is 420443033. The next prime is 420443063. The reversal of 420443043 is 340344024.

It is a happy number.

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

It is not a de Polignac number, because 420443043 - 2¹⁸ = 420180899 is a prime.

It is not an unprimeable number, because it can be changed into a prime (420443003) 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, 986743 + ... + 987168.

It is an arithmetic number, because the mean of its divisors is an integer number (71060832).

Almost surely, 2^420443043 is an apocalyptic number.

420443043 is a deficient number, since it is larger than the sum of its proper divisors (148043613).

420443043 is a wasteful number, since it uses less digits than its factorization.

420443043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1973985.

The product of its (nonzero) digits is 4608, while the sum is 24.

The square root of 420443043 is about 20504.7078252776. The cubic root of 420443043 is about 749.1504709861.

Adding to 420443043 its reverse (340344024), we get a palindrome (760787067).

The spelling of 420443043 in words is "four hundred twenty million, four hundred forty-three thousand, forty-three".