423440412 has 12 divisors (see below), whose sum is σ = 988027656. Its totient is φ = 141146800.

The previous prime is 423440411. The next prime is 423440429. The reversal of 423440412 is 214044324.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a nialpdrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423440411) 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 3 ways as a sum of consecutive naturals, for example, 17643339 + ... + 17643362.

It is an arithmetic number, because the mean of its divisors is an integer number (82335638).

Almost surely, 2^423440412 is an apocalyptic number.

It is an amenable number.

423440412 is an abundant number, since it is smaller than the sum of its proper divisors (564587244).

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

423440412 is a wasteful number, since it uses less digits than its factorization.

423440412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35286708 (or 35286706 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 423440412 is about 20577.6677978822. The cubic root of 423440412 is about 750.9265065318.

Adding to 423440412 its reverse (214044324), we get a palindrome (637484736).

The spelling of 423440412 in words is "four hundred twenty-three million, four hundred forty thousand, four hundred twelve".