423131344 has 40 divisors (see below), whose sum is σ = 858382560. Its totient is φ = 201790848.

The previous prime is 423131341. The next prime is 423131353. The reversal of 423131344 is 443131324.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423131341) 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, 33019 + ... + 44005.

It is an arithmetic number, because the mean of its divisors is an integer number (21459564).

Almost surely, 2^423131344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 423131344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (429191280).

423131344 is an abundant number, since it is smaller than the sum of its proper divisors (435251216).

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

423131344 is a wasteful number, since it uses less digits than its factorization.

423131344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11107 (or 11101 counting only the distinct ones).

The product of its digits is 3456, while the sum is 25.

The square root of 423131344 is about 20570.1566352811. The cubic root of 423131344 is about 750.7437623278.

Adding to 423131344 its reverse (443131324), we get a palindrome (866262668).

The spelling of 423131344 in words is "four hundred twenty-three million, one hundred thirty-one thousand, three hundred forty-four".