213241244 has 12 divisors (see below), whose sum is σ = 373741368. Its totient is φ = 106458000.

The previous prime is 213241213. The next prime is 213241247. The reversal of 213241244 is 442142312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213241247) 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, 37682 + ... + 42969.

It is an arithmetic number, because the mean of its divisors is an integer number (31145114).

Almost surely, 2^213241244 is an apocalyptic number.

It is an amenable number.

213241244 is a deficient number, since it is larger than the sum of its proper divisors (160500124).

213241244 is a wasteful number, since it uses less digits than its factorization.

213241244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81316 (or 81314 counting only the distinct ones).

The product of its digits is 1536, while the sum is 23.

The square root of 213241244 is about 14602.7820637028. The cubic root of 213241244 is about 597.4346435052.

Adding to 213241244 its reverse (442142312), we get a palindrome (655383556).

The spelling of 213241244 in words is "two hundred thirteen million, two hundred forty-one thousand, two hundred forty-four".