423623332 has 12 divisors (see below), whose sum is σ = 808735536. Its totient is φ = 192556040.

The previous prime is 423623311. The next prime is 423623351. The reversal of 423623332 is 233326324.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 423623332.

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, 4813858 + ... + 4813945.

It is an arithmetic number, because the mean of its divisors is an integer number (67394628).

Almost surely, 2^423623332 is an apocalyptic number.

It is an amenable number.

423623332 is a deficient number, since it is larger than the sum of its proper divisors (385112204).

423623332 is a wasteful number, since it uses less digits than its factorization.

423623332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9627818 (or 9627816 counting only the distinct ones).

The product of its digits is 15552, while the sum is 28.

The square root of 423623332 is about 20582.1119421696. Note that the first 3 decimals coincide. The cubic root of 423623332 is about 751.0346206830.

Adding to 423623332 its reverse (233326324), we get a palindrome (656949656).

The spelling of 423623332 in words is "four hundred twenty-three million, six hundred twenty-three thousand, three hundred thirty-two".