423172216 has 32 divisors (see below), whose sum is σ = 837280800. Its totient is φ = 200104960.

The previous prime is 423172213. The next prime is 423172271. The reversal of 423172216 is 612271324.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423172213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3456 + ... + 29296.

It is an arithmetic number, because the mean of its divisors is an integer number (26165025).

Almost surely, 2^423172216 is an apocalyptic number.

423172216 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is an amenable number.

423172216 is a deficient number, since it is larger than the sum of its proper divisors (414108584).

423172216 is a wasteful number, since it uses less digits than its factorization.

423172216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25959 (or 25955 counting only the distinct ones).

The product of its digits is 4032, while the sum is 28.

The square root of 423172216 is about 20571.1500893849. The cubic root of 423172216 is about 750.7679340273.

The spelling of 423172216 in words is "four hundred twenty-three million, one hundred seventy-two thousand, two hundred sixteen".