213230344 has 16 divisors (see below), whose sum is σ = 400157820. Its totient is φ = 106521600.

The previous prime is 213230341. The next prime is 213230351. The reversal of 213230344 is 443032312.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 211353444 + 1876900 = 14538^2 + 1370^2 .

It is not an unprimeable number, because it can be changed into a prime (213230341) 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, 1489 + ... + 20704.

Almost surely, 2^213230344 is an apocalyptic number.

It is an amenable number.

213230344 is a deficient number, since it is larger than the sum of its proper divisors (186927476).

213230344 is a wasteful number, since it uses less digits than its factorization.

213230344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23400 (or 23396 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 213230344 is about 14602.4088423794. The cubic root of 213230344 is about 597.4244638789.

Adding to 213230344 its reverse (443032312), we get a palindrome (656262656).

The spelling of 213230344 in words is "two hundred thirteen million, two hundred thirty thousand, three hundred forty-four".