210225930 has 32 divisors (see below), whose sum is σ = 521942400. Its totient is φ = 54126912.

The previous prime is 210225913. The next prime is 210225943. The reversal of 210225930 is 39522012.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 210225930.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119950 + ... + 121689.

It is an arithmetic number, because the mean of its divisors is an integer number (16310700).

Almost surely, 2^210225930 is an apocalyptic number.

210225930 is an abundant number, since it is smaller than the sum of its proper divisors (311716470).

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

210225930 is a wasteful number, since it uses less digits than its factorization.

210225930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241678.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 210225930 is about 14499.1699762435. The cubic root of 210225930 is about 594.6052792416.

Adding to 210225930 its reverse (39522012), we get a palindrome (249747942).

The spelling of 210225930 in words is "two hundred ten million, two hundred twenty-five thousand, nine hundred thirty".