210128832 has 84 divisors (see below), whose sum is σ = 604292416. Its totient is φ = 69811200.

The previous prime is 210128801. The next prime is 210128833. The reversal of 210128832 is 238821012.

It is a junction number, because it is equal to n+sod(n) for n = 210128796 and 210128805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210128833) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 345873 + ... + 346479.

Almost surely, 2^210128832 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 210128832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (302146208).

210128832 is an abundant number, since it is smaller than the sum of its proper divisors (394163584).

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

210128832 is a wasteful number, since it uses less digits than its factorization.

210128832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1226 (or 1213 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 210128832 is about 14495.8211909502. The cubic root of 210128832 is about 594.5137208018.

Adding to 210128832 its reverse (238821012), we get a palindrome (448949844).

The spelling of 210128832 in words is "two hundred ten million, one hundred twenty-eight thousand, eight hundred thirty-two".