213324646 has 8 divisors (see below), whose sum is σ = 322106544. Its totient is φ = 105955800.

The previous prime is 213324611. The next prime is 213324673. The reversal of 213324646 is 646423312.

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

It is a congruent number.

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, 352885 + ... + 353488.

It is an arithmetic number, because the mean of its divisors is an integer number (40263318).

Almost surely, 2^213324646 is an apocalyptic number.

213324646 is a deficient number, since it is larger than the sum of its proper divisors (108781898).

213324646 is a wasteful number, since it uses less digits than its factorization.

213324646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 706526.

The product of its digits is 20736, while the sum is 31.

The square root of 213324646 is about 14605.6374732498. The cubic root of 213324646 is about 597.5125220440.

Adding to 213324646 its reverse (646423312), we get a palindrome (859747958).

The spelling of 213324646 in words is "two hundred thirteen million, three hundred twenty-four thousand, six hundred forty-six".