423443412 has 144 divisors (see below), whose sum is σ = 1309875840. Its totient is φ = 112582656.

The previous prime is 423443357. The next prime is 423443437. The reversal of 423443412 is 214344324.

It is a happy number.

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

It is a nialpdrome in base 12.

It is a congruent number.

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 47 ways as a sum of consecutive naturals, for example, 415039 + ... + 416057.

It is an arithmetic number, because the mean of its divisors is an integer number (9096360).

Almost surely, 2^423443412 is an apocalyptic number.

423443412 is a gapful number since it is divisible by the number (42) 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 423443412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (654937920).

423443412 is an abundant number, since it is smaller than the sum of its proper divisors (886432428).

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

423443412 is a wasteful number, since it uses less digits than its factorization.

423443412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1150 (or 1145 counting only the distinct ones).

The product of its digits is 9216, while the sum is 27.

The square root of 423443412 is about 20577.7406923112. The cubic root of 423443412 is about 750.9282799212.

Adding to 423443412 its reverse (214344324), we get a palindrome (637787736).

The spelling of 423443412 in words is "four hundred twenty-three million, four hundred forty-three thousand, four hundred twelve".