423543345 has 16 divisors (see below), whose sum is σ = 713336640. Its totient is φ = 214000704.

The previous prime is 423543319. The next prime is 423543391. The reversal of 423543345 is 543345324.

It is a happy number.

It is not a de Polignac number, because 423543345 - 2⁸ = 423543089 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 742774 + ... + 743343.

It is an arithmetic number, because the mean of its divisors is an integer number (44583540).

Almost surely, 2^423543345 is an apocalyptic number.

It is an amenable number.

423543345 is a deficient number, since it is larger than the sum of its proper divisors (289793295).

423543345 is a wasteful number, since it uses less digits than its factorization.

423543345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1486144.

The product of its digits is 86400, while the sum is 33.

The square root of 423543345 is about 20580.1687310867. The cubic root of 423543345 is about 750.9873485091.

Adding to 423543345 its reverse (543345324), we get a palindrome (966888669).

The spelling of 423543345 in words is "four hundred twenty-three million, five hundred forty-three thousand, three hundred forty-five".