423304442 has 32 divisors (see below), whose sum is σ = 718848000. Its totient is φ = 185209200.

The previous prime is 423304423. The next prime is 423304447. The reversal of 423304442 is 244403324.

It is not an unprimeable number, because it can be changed into a prime (423304447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134159 + ... + 137277.

It is an arithmetic number, because the mean of its divisors is an integer number (22464000).

Almost surely, 2^423304442 is an apocalyptic number.

423304442 is a deficient number, since it is larger than the sum of its proper divisors (295543558).

423304442 is a wasteful number, since it uses less digits than its factorization.

423304442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3362.

The product of its (nonzero) digits is 9216, while the sum is 26.

The square root of 423304442 is about 20574.3637082657. The cubic root of 423304442 is about 750.8461218189.

Adding to 423304442 its reverse (244403324), we get a palindrome (667707766).

The spelling of 423304442 in words is "four hundred twenty-three million, three hundred four thousand, four hundred forty-two".