423224140 has 24 divisors (see below), whose sum is σ = 910449792. Its totient is φ = 165160320.

The previous prime is 423224119. The next prime is 423224141. The reversal of 423224140 is 41422324.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (423224141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 257244 + ... + 258883.

It is an arithmetic number, because the mean of its divisors is an integer number (37935408).

Almost surely, 2^423224140 is an apocalyptic number.

It is an amenable number.

423224140 is an abundant number, since it is smaller than the sum of its proper divisors (487225652).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

423224140 is a wasteful number, since it uses less digits than its factorization.

423224140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516177 (or 516175 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 423224140 is about 20572.4121094246. The cubic root of 423224140 is about 750.7986396348.

Adding to 423224140 its reverse (41422324), we get a palindrome (464646464).

The spelling of 423224140 in words is "four hundred twenty-three million, two hundred twenty-four thousand, one hundred forty".