209390230 has 24 divisors (see below), whose sum is σ = 438438528. Its totient is φ = 71790768.

The previous prime is 209390221. The next prime is 209390249. The reversal of 209390230 is 32093902.

It is a happy number.

209390230 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 213174 + ... + 214153.

It is an arithmetic number, because the mean of its divisors is an integer number (18268272).

Almost surely, 2^209390230 is an apocalyptic number.

209390230 is an abundant number, since it is smaller than the sum of its proper divisors (229048298).

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

209390230 is a wasteful number, since it uses less digits than its factorization.

209390230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427348 (or 427341 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 28.

The square root of 209390230 is about 14470.3223875628. The cubic root of 209390230 is about 593.8163319430.

The spelling of 209390230 in words is "two hundred nine million, three hundred ninety thousand, two hundred thirty".