423523432 has 16 divisors (see below), whose sum is σ = 794744640. Its totient is φ = 211591536.

The previous prime is 423523421. The next prime is 423523483. The reversal of 423523432 is 234325324.

It is a self number, because there is not a number n which added to its sum of digits gives 423523432.

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, 10368 + ... + 30895.

It is an arithmetic number, because the mean of its divisors is an integer number (49671540).

Almost surely, 2^423523432 is an apocalyptic number.

It is an amenable number.

423523432 is a deficient number, since it is larger than the sum of its proper divisors (371221208).

423523432 is a wasteful number, since it uses less digits than its factorization.

423523432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42552 (or 42548 counting only the distinct ones).

The product of its digits is 17280, while the sum is 28.

The square root of 423523432 is about 20579.6849344202. The cubic root of 423523432 is about 750.9755790364.

Adding to 423523432 its reverse (234325324), we get a palindrome (657848756).

The spelling of 423523432 in words is "four hundred twenty-three million, five hundred twenty-three thousand, four hundred thirty-two".