423216333 has 24 divisors (see below), whose sum is σ = 635046048. Its totient is φ = 281658384.

The previous prime is 423216319. The next prime is 423216337. The reversal of 423216333 is 333612324.

It is a happy number.

423216333 is a `hidden beast` number, since 4 + 2 + 3 + 21 + 633 + 3 = 666.

It is not a de Polignac number, because 423216333 - 2¹³ = 423208141 is a prime.

It is a super-2 number, since 2×423216333² = 358224129035933778, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 423216297 and 423216306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423216337) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 190135 + ... + 192347.

It is an arithmetic number, because the mean of its divisors is an integer number (26460252).

Almost surely, 2^423216333 is an apocalyptic number.

It is an amenable number.

423216333 is a deficient number, since it is larger than the sum of its proper divisors (211829715).

423216333 is an equidigital number, since it uses as much as digits as its factorization.

423216333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3015 (or 3003 counting only the distinct ones).

The product of its digits is 7776, while the sum is 27.

The square root of 423216333 is about 20572.2223641492. Note that the first 3 decimals coincide. The cubic root of 423216333 is about 750.7940230732.

Adding to 423216333 its reverse (333612324), we get a palindrome (756828657).

The spelling of 423216333 in words is "four hundred twenty-three million, two hundred sixteen thousand, three hundred thirty-three".