423031144 has 8 divisors (see below), whose sum is σ = 793183410. Its totient is φ = 211515568.

The previous prime is 423031123. The next prime is 423031183. The reversal of 423031144 is 441130324.

It can be written as a sum of positive squares in only one way, i.e., 393546244 + 29484900 = 19838^2 + 5430^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26439439 + ... + 26439454.

Almost surely, 2^423031144 is an apocalyptic number.

It is an amenable number.

423031144 is a deficient number, since it is larger than the sum of its proper divisors (370152266).

423031144 is a wasteful number, since it uses less digits than its factorization.

423031144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52878899 (or 52878895 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 423031144 is about 20567.7209238165. The cubic root of 423031144 is about 750.6844974646.

Adding to 423031144 its reverse (441130324), we get a palindrome (864161468).

The spelling of 423031144 in words is "four hundred twenty-three million, thirty-one thousand, one hundred forty-four".