212300728 has 16 divisors (see below), whose sum is σ = 398772000. Its totient is φ = 105961536.

The previous prime is 212300723. The next prime is 212300731. The reversal of 212300728 is 827003212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212300723) 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, 18768 + ... + 27871.

It is an arithmetic number, because the mean of its divisors is an integer number (24923250).

Almost surely, 2^212300728 is an apocalyptic number.

It is an amenable number.

212300728 is a deficient number, since it is larger than the sum of its proper divisors (186471272).

212300728 is a wasteful number, since it uses less digits than its factorization.

212300728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47214 (or 47210 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 212300728 is about 14570.5431607748. The cubic root of 212300728 is about 596.5550060324. Note that the first 3 decimals are identical.

The spelling of 212300728 in words is "two hundred twelve million, three hundred thousand, seven hundred twenty-eight".