423336144 has 160 divisors (see below), whose sum is σ = 1393053696. Its totient is φ = 107573760.

The previous prime is 423336127. The next prime is 423336163. The reversal of 423336144 is 441633324.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 172494 + ... + 174930.

Almost surely, 2^423336144 is an apocalyptic number.

423336144 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 423336144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (696526848).

423336144 is an abundant number, since it is smaller than the sum of its proper divisors (969717552).

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

423336144 is a wasteful number, since it uses less digits than its factorization.

423336144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2513 (or 2507 counting only the distinct ones).

The product of its digits is 20736, while the sum is 30.

The square root of 423336144 is about 20575.1341186394. The cubic root of 423336144 is about 750.8648654049.

Adding to 423336144 its reverse (441633324), we get a palindrome (864969468).

The spelling of 423336144 in words is "four hundred twenty-three million, three hundred thirty-six thousand, one hundred forty-four".