213244306 has 8 divisors (see below), whose sum is σ = 348945264. Its totient is φ = 96929220.

The previous prime is 213244237. The next prime is 213244313. The reversal of 213244306 is 603442312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4846440 + ... + 4846483.

It is an arithmetic number, because the mean of its divisors is an integer number (43618158).

Almost surely, 2^213244306 is an apocalyptic number.

213244306 is a deficient number, since it is larger than the sum of its proper divisors (135700958).

213244306 is a wasteful number, since it uses less digits than its factorization.

213244306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9692936.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 213244306 is about 14602.8869063620. The cubic root of 213244306 is about 597.4375030773.

Adding to 213244306 its reverse (603442312), we get a palindrome (816686618).

The spelling of 213244306 in words is "two hundred thirteen million, two hundred forty-four thousand, three hundred six".