212832728 has 16 divisors (see below), whose sum is σ = 399298680. Its totient is φ = 106353088.

The previous prime is 212832727. The next prime is 212832733. The reversal of 212832728 is 827238212.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212832727) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8351 + ... + 22257.

Almost surely, 2^212832728 is an apocalyptic number.

It is an amenable number.

212832728 is a deficient number, since it is larger than the sum of its proper divisors (186465952).

212832728 is a wasteful number, since it uses less digits than its factorization.

212832728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15826 (or 15822 counting only the distinct ones).

The product of its digits is 21504, while the sum is 35.

The square root of 212832728 is about 14588.7877495013. The cubic root of 212832728 is about 597.0528886663.

The spelling of 212832728 in words is "two hundred twelve million, eight hundred thirty-two thousand, seven hundred twenty-eight".