423912 has 32 divisors (see below), whose sum is σ = 1123200. Its totient is φ = 132864.

The previous prime is 423887. The next prime is 423931. The reversal of 423912 is 219324.

It is an Ulam number.

It is an unprimeable number.

423912 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112 + ... + 927.

It is an arithmetic number, because the mean of its divisors is an integer number (35100).

2⁴²³⁹¹² 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 423912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (561600).

423912 is an abundant number, since it is smaller than the sum of its proper divisors (699288).

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

423912 is a wasteful number, since it uses less digits than its factorization.

423912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1065 (or 1061 counting only the distinct ones).

The product of its digits is 432, while the sum is 21.

The square root of 423912 is about 651.0852478747. The cubic root of 423912 is about 75.1205173483.

The spelling of 423912 in words is "four hundred twenty-three thousand, nine hundred twelve".