423351216 has 60 divisors (see below), whose sum is σ = 1189849440. Its totient is φ = 140515200.

The previous prime is 423351191. The next prime is 423351239. The reversal of 423351216 is 612153324.

It is a self number, because there is not a number n which added to its sum of digits gives 423351216.

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, 28266 + ... + 40566.

It is an arithmetic number, because the mean of its divisors is an integer number (19830824).

Almost surely, 2^423351216 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 423351216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (594924720).

423351216 is an abundant number, since it is smaller than the sum of its proper divisors (766498224).

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

423351216 is a wasteful number, since it uses less digits than its factorization.

423351216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12554 (or 12545 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 423351216 is about 20575.5003827367. The cubic root of 423351216 is about 750.8737762913.

The spelling of 423351216 in words is "four hundred twenty-three million, three hundred fifty-one thousand, two hundred sixteen".