423344433 has 16 divisors (see below), whose sum is σ = 568737792. Its totient is φ = 280098000.

The previous prime is 423344419. The next prime is 423344461. The reversal of 423344433 is 334443324.

It is not a de Polignac number, because 423344433 - 2⁸ = 423344177 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 423344433.

It is not an unprimeable number, because it can be changed into a prime (423344413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 464248 + ... + 465158.

It is an arithmetic number, because the mean of its divisors is an integer number (35546112).

Almost surely, 2^423344433 is an apocalyptic number.

It is an amenable number.

423344433 is a deficient number, since it is larger than the sum of its proper divisors (145393359).

423344433 is a wasteful number, since it uses less digits than its factorization.

423344433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1916.

The product of its digits is 41472, while the sum is 30.

The square root of 423344433 is about 20575.3355501192. The cubic root of 423344433 is about 750.8697660639.

Adding to 423344433 its reverse (334443324), we get a palindrome (757787757).

The spelling of 423344433 in words is "four hundred twenty-three million, three hundred forty-four thousand, four hundred thirty-three".