423004442 has 16 divisors (see below), whose sum is σ = 727832832. Its totient is φ = 180617040.

The previous prime is 423004441. The next prime is 423004447. The reversal of 423004442 is 244400324.

It is not an unprimeable number, because it can be changed into a prime (423004441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51953 + ... + 59540.

It is an arithmetic number, because the mean of its divisors is an integer number (45489552).

Almost surely, 2^423004442 is an apocalyptic number.

423004442 is a deficient number, since it is larger than the sum of its proper divisors (304828390).

423004442 is a wasteful number, since it uses less digits than its factorization.

423004442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111773.

The product of its (nonzero) digits is 3072, while the sum is 23.

The square root of 423004442 is about 20567.0717896350. The cubic root of 423004442 is about 750.6687025683.

Adding to 423004442 its reverse (244400324), we get a palindrome (667404766).

The spelling of 423004442 in words is "four hundred twenty-three million, four thousand, four hundred forty-two".