432435728 has 10 divisors (see below), whose sum is σ = 837844254. Its totient is φ = 216217856.

The previous prime is 432435701. The next prime is 432435739. The reversal of 432435728 is 827534234.

It can be written as a sum of positive squares in only one way, i.e., 358269184 + 74166544 = 18928^2 + 8612^2 .

It is a junction number, because it is equal to n+sod(n) for n = 432435691 and 432435700.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13513601 + ... + 13513632.

Almost surely, 2^432435728 is an apocalyptic number.

It is an amenable number.

432435728 is a deficient number, since it is larger than the sum of its proper divisors (405408526).

432435728 is a wasteful number, since it uses less digits than its factorization.

432435728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27027241 (or 27027235 counting only the distinct ones).

The product of its digits is 161280, while the sum is 38.

The square root of 432435728 is about 20795.0890356353. The cubic root of 432435728 is about 756.2067032745.

The spelling of 432435728 in words is "four hundred thirty-two million, four hundred thirty-five thousand, seven hundred twenty-eight".