423424442 has 16 divisors (see below), whose sum is σ = 734028480. Its totient is φ = 179428128.

The previous prime is 423424433. The next prime is 423424453. The reversal of 423424442 is 244424324.

It is a super-2 number, since 2×423424442² = 358576516166022728, which contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 168668 + ... + 171159.

It is an arithmetic number, because the mean of its divisors is an integer number (45876780).

Almost surely, 2^423424442 is an apocalyptic number.

423424442 is a deficient number, since it is larger than the sum of its proper divisors (310604038).

423424442 is a wasteful number, since it uses less digits than its factorization.

423424442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339925.

The product of its digits is 24576, while the sum is 29.

The square root of 423424442 is about 20577.2797521927. The cubic root of 423424442 is about 750.9170660480.

Adding to 423424442 its reverse (244424324), we get a palindrome (667848766).

The spelling of 423424442 in words is "four hundred twenty-three million, four hundred twenty-four thousand, four hundred forty-two".