213244324 has 6 divisors (see below), whose sum is σ = 373177574. Its totient is φ = 106622160.

The previous prime is 213244313. The next prime is 213244327. The reversal of 213244324 is 423442312.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 124545600 + 88698724 = 11160^2 + 9418^2 .

It is not an unprimeable number, because it can be changed into a prime (213244327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26655537 + ... + 26655544.

Almost surely, 2^213244324 is an apocalyptic number.

It is an amenable number.

213244324 is a deficient number, since it is larger than the sum of its proper divisors (159933250).

213244324 is a wasteful number, since it uses less digits than its factorization.

213244324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53311085 (or 53311083 counting only the distinct ones).

The product of its digits is 4608, while the sum is 25.

The square root of 213244324 is about 14602.8875226785. The cubic root of 213244324 is about 597.4375198873.

Adding to 213244324 its reverse (423442312), we get a palindrome (636686636).

The spelling of 213244324 in words is "two hundred thirteen million, two hundred forty-four thousand, three hundred twenty-four".