213232244 has 12 divisors (see below), whose sum is σ = 386024100. Its totient is φ = 102939648.

The previous prime is 213232213. The next prime is 213232249. The reversal of 213232244 is 442232312.

It can be written as a sum of positive squares in 2 ways, for example, as 121264144 + 91968100 = 11012^2 + 9590^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213232249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 918989 + ... + 919220.

It is an arithmetic number, because the mean of its divisors is an integer number (32168675).

Almost surely, 2^213232244 is an apocalyptic number.

It is an amenable number.

213232244 is a deficient number, since it is larger than the sum of its proper divisors (172791856).

213232244 is a wasteful number, since it uses less digits than its factorization.

213232244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1838242 (or 1838240 counting only the distinct ones).

The product of its digits is 2304, while the sum is 23.

The square root of 213232244 is about 14602.4738999938. The cubic root of 213232244 is about 597.4262383341.

Adding to 213232244 its reverse (442232312), we get a palindrome (655464556).

The spelling of 213232244 in words is "two hundred thirteen million, two hundred thirty-two thousand, two hundred forty-four".