423728432 has 20 divisors (see below), whose sum is σ = 825895056. Its totient is φ = 210594240.

The previous prime is 423728423. The next prime is 423728447. The reversal of 423728432 is 234827324.

423728432 is nontrivially palindromic in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 423728392 and 423728401.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76619 + ... + 81962.

Almost surely, 2^423728432 is an apocalyptic number.

It is an amenable number.

423728432 is a deficient number, since it is larger than the sum of its proper divisors (402166624).

423728432 is a wasteful number, since it uses less digits than its factorization.

423728432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158756 (or 158750 counting only the distinct ones).

The product of its digits is 64512, while the sum is 35.

The square root of 423728432 is about 20584.6649717696. The cubic root of 423728432 is about 751.0967255498.

The spelling of 423728432 in words is "four hundred twenty-three million, seven hundred twenty-eight thousand, four hundred thirty-two".