209285230 has 48 divisors (see below), whose sum is σ = 473245920. Its totient is φ = 65229120.

The previous prime is 209285227. The next prime is 209285269. The reversal of 209285230 is 32582902.

It is a junction number, because it is equal to n+sod(n) for n = 209285192 and 209285201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3885 + ... + 20824.

It is an arithmetic number, because the mean of its divisors is an integer number (9859290).

Almost surely, 2^209285230 is an apocalyptic number.

209285230 is an abundant number, since it is smaller than the sum of its proper divisors (263960690).

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

209285230 is a wasteful number, since it uses less digits than its factorization.

209285230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24745 (or 24734 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 209285230 is about 14466.6938171788. The cubic root of 209285230 is about 593.7170577476.

The spelling of 209285230 in words is "two hundred nine million, two hundred eighty-five thousand, two hundred thirty".