210788228 has 12 divisors (see below), whose sum is σ = 421576512. Its totient is φ = 90337800.

The previous prime is 210788209. The next prime is 210788239. The reversal of 210788228 is 822887012.

210788228 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

210788228 is an admirable number.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 210788191 and 210788200.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3764048 + ... + 3764103.

It is an arithmetic number, because the mean of its divisors is an integer number (35131376).

Almost surely, 2^210788228 is an apocalyptic number.

210788228 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

210788228 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

210788228 is a wasteful number, since it uses less digits than its factorization.

210788228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7528162 (or 7528160 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 38.

The square root of 210788228 is about 14518.5477235156. The cubic root of 210788228 is about 595.1349438533.

The spelling of 210788228 in words is "two hundred ten million, seven hundred eighty-eight thousand, two hundred twenty-eight".