213330236 has 24 divisors (see below), whose sum is σ = 432509280. Its totient is φ = 90173952.

The previous prime is 213330209. The next prime is 213330239. The reversal of 213330236 is 632033312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213330239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50141 + ... + 54228.

It is an arithmetic number, because the mean of its divisors is an integer number (18021220).

Almost surely, 2^213330236 is an apocalyptic number.

It is an amenable number.

213330236 is an abundant number, since it is smaller than the sum of its proper divisors (219179044).

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

213330236 is a wasteful number, since it uses less digits than its factorization.

213330236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104453 (or 104451 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 23.

The square root of 213330236 is about 14605.8288364611. The cubic root of 213330236 is about 597.5177411094.

Adding to 213330236 its reverse (632033312), we get a palindrome (845363548).

The spelling of 213330236 in words is "two hundred thirteen million, three hundred thirty thousand, two hundred thirty-six".