423055216 has 20 divisors (see below), whose sum is σ = 862810600. Its totient is φ = 200394432.

The previous prime is 423055189. The next prime is 423055247. The reversal of 423055216 is 612550324.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 695511 + ... + 696118.

It is an arithmetic number, because the mean of its divisors is an integer number (43140530).

Almost surely, 2^423055216 is an apocalyptic number.

It is an amenable number.

423055216 is an abundant number, since it is smaller than the sum of its proper divisors (439755384).

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

423055216 is a wasteful number, since it uses less digits than its factorization.

423055216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1391656 (or 1391650 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 423055216 is about 20568.3061042955. The cubic root of 423055216 is about 750.6987360810.

The spelling of 423055216 in words is "four hundred twenty-three million, fifty-five thousand, two hundred sixteen".