423340312 has 8 divisors (see below), whose sum is σ = 793763100. Its totient is φ = 211670152.

The previous prime is 423340297. The next prime is 423340319. The reversal of 423340312 is 213043324.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423340319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26458762 + ... + 26458777.

Almost surely, 2^423340312 is an apocalyptic number.

It is an amenable number.

423340312 is a deficient number, since it is larger than the sum of its proper divisors (370422788).

423340312 is a wasteful number, since it uses less digits than its factorization.

423340312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52917545 (or 52917541 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 423340312 is about 20575.2354057007. The cubic root of 423340312 is about 750.8673296361.

Adding to 423340312 its reverse (213043324), we get a palindrome (636383636).

The spelling of 423340312 in words is "four hundred twenty-three million, three hundred forty thousand, three hundred twelve".