423512012 has 24 divisors (see below), whose sum is σ = 924026880. Its totient is φ = 165004560.

The previous prime is 423511997. The next prime is 423512021. The reversal of 423512012 is 210215324.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 687212 + ... + 687827.

It is an arithmetic number, because the mean of its divisors is an integer number (38501120).

Almost surely, 2^423512012 is an apocalyptic number.

It is an amenable number.

423512012 is an abundant number, since it is smaller than the sum of its proper divisors (500514868).

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

423512012 is a wasteful number, since it uses less digits than its factorization.

423512012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1375061 (or 1375059 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 423512012 is about 20579.4074744634. The cubic root of 423512012 is about 750.9688291398.

Adding to 423512012 its reverse (210215324), we get a palindrome (633727336).

The spelling of 423512012 in words is "four hundred twenty-three million, five hundred twelve thousand, twelve".