1606128432 has 40 divisors (see below), whose sum is σ = 4245662784. Its totient is φ = 522924864.

The previous prime is 1606128427. The next prime is 1606128451. The reversal of 1606128432 is 2348216061.

It is a junction number, because it is equal to n+sod(n) for n = 1606128393 and 1606128402.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 387018 + ... + 391145.

Almost surely, 2^1606128432 is an apocalyptic number.

1606128432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1606128432 is an abundant number, since it is smaller than the sum of its proper divisors (2639534352).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1606128432 is a wasteful number, since it uses less digits than its factorization.

1606128432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 778217 (or 778211 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 1606128432 is about 40076.5321853077. The cubic root of 1606128432 is about 1171.0984964028.

The spelling of 1606128432 in words is "one billion, six hundred six million, one hundred twenty-eight thousand, four hundred thirty-two".