213223346 has 32 divisors (see below), whose sum is σ = 378069120. Its totient is φ = 88298496.

The previous prime is 213223343. The next prime is 213223357. The reversal of 213223346 is 643322312.

It is not an unprimeable number, because it can be changed into a prime (213223343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47570 + ... + 51858.

It is an arithmetic number, because the mean of its divisors is an integer number (11814660).

Almost surely, 2^213223346 is an apocalyptic number.

213223346 is a deficient number, since it is larger than the sum of its proper divisors (164845774).

213223346 is a wasteful number, since it uses less digits than its factorization.

213223346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4418.

The product of its digits is 5184, while the sum is 26.

The square root of 213223346 is about 14602.1692224135. The cubic root of 213223346 is about 597.4179281891.

Adding to 213223346 its reverse (643322312), we get a palindrome (856545658).

The spelling of 213223346 in words is "two hundred thirteen million, two hundred twenty-three thousand, three hundred forty-six".