213232230 has 32 divisors (see below), whose sum is σ = 568620000. Its totient is φ = 56861856.

The previous prime is 213232213. The next prime is 213232249. The reversal of 213232230 is 32232312.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 394605 + ... + 395144.

It is an arithmetic number, because the mean of its divisors is an integer number (17769375).

Almost surely, 2^213232230 is an apocalyptic number.

213232230 is an abundant number, since it is smaller than the sum of its proper divisors (355387770).

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

213232230 is a wasteful number, since it uses less digits than its factorization.

213232230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 789765 (or 789759 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 213232230 is about 14602.4734206230. The cubic root of 213232230 is about 597.4262252592.

Adding to 213232230 its reverse (32232312), we get a palindrome (245464542).

The spelling of 213232230 in words is "two hundred thirteen million, two hundred thirty-two thousand, two hundred thirty".