423391032 has 48 divisors (see below), whose sum is σ = 1158524640. Its totient is φ = 139673088.

The previous prime is 423391013. The next prime is 423391049. The reversal of 423391032 is 230193324.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 423390987 and 423391005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23328 + ... + 37295.

It is an arithmetic number, because the mean of its divisors is an integer number (24135930).

Almost surely, 2^423391032 is an apocalyptic number.

It is an amenable number.

423391032 is an abundant number, since it is smaller than the sum of its proper divisors (735133608).

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

423391032 is a wasteful number, since it uses less digits than its factorization.

423391032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60732 (or 60725 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 423391032 is about 20576.4679184742. The cubic root of 423391032 is about 750.8973153388.

The spelling of 423391032 in words is "four hundred twenty-three million, three hundred ninety-one thousand, thirty-two".