423334512 has 200 divisors, whose sum is σ = 1300666752. Its totient is φ = 132710400.

The previous prime is 423334511. The next prime is 423334523. The reversal of 423334512 is 215433324.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423334511) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1647088 + ... + 1647344.

Almost surely, 2^423334512 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 423334512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (650333376).

423334512 is an abundant number, since it is smaller than the sum of its proper divisors (877332240).

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

423334512 is a wasteful number, since it uses less digits than its factorization.

423334512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349 (or 334 counting only the distinct ones).

The product of its digits is 8640, while the sum is 27.

The square root of 423334512 is about 20575.0944590784. The cubic root of 423334512 is about 750.8639005191.

Adding to 423334512 its reverse (215433324), we get a palindrome (638767836).

The spelling of 423334512 in words is "four hundred twenty-three million, three hundred thirty-four thousand, five hundred twelve".