213038236 has 24 divisors (see below), whose sum is σ = 394367904. Its totient is φ = 100488960.

The previous prime is 213038233. The next prime is 213038239. The reversal of 213038236 is 632830312.

213038236 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (213038233) and next prime (213038239).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213038233) 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, 9145 + ... + 22576.

It is an arithmetic number, because the mean of its divisors is an integer number (16431996).

Almost surely, 2^213038236 is an apocalyptic number.

It is an amenable number.

213038236 is a deficient number, since it is larger than the sum of its proper divisors (181329668).

213038236 is a wasteful number, since it uses less digits than its factorization.

213038236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31821 (or 31819 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 213038236 is about 14595.8294043196. The cubic root of 213038236 is about 597.2449952019.

Adding to 213038236 its reverse (632830312), we get a palindrome (845868548).

The spelling of 213038236 in words is "two hundred thirteen million, thirty-eight thousand, two hundred thirty-six".