210228836 has 6 divisors (see below), whose sum is σ = 367900470. Its totient is φ = 105114416.

The previous prime is 210228727. The next prime is 210228839. The reversal of 210228836 is 638822012.

210228836 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 200052736 + 10176100 = 14144^2 + 3190^2 .

It is not an unprimeable number, because it can be changed into a prime (210228839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26278601 + ... + 26278608.

It is an arithmetic number, because the mean of its divisors is an integer number (61316745).

Almost surely, 2^210228836 is an apocalyptic number.

It is an amenable number.

210228836 is a deficient number, since it is larger than the sum of its proper divisors (157671634).

210228836 is a wasteful number, since it uses less digits than its factorization.

210228836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52557213 (or 52557211 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 210228836 is about 14499.2701885302. The cubic root of 210228836 is about 594.6080190162.

The spelling of 210228836 in words is "two hundred ten million, two hundred twenty-eight thousand, eight hundred thirty-six".