213223386 has 16 divisors (see below), whose sum is σ = 444988224. Its totient is φ = 67984224.

The previous prime is 213223357. The next prime is 213223403. The reversal of 213223386 is 683322312.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 772411 + ... + 772686.

It is an arithmetic number, because the mean of its divisors is an integer number (27811764).

Almost surely, 2^213223386 is an apocalyptic number.

213223386 is an abundant number, since it is smaller than the sum of its proper divisors (231764838).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213223386 is a wasteful number, since it uses less digits than its factorization.

213223386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1545125.

The product of its digits is 10368, while the sum is 30.

The square root of 213223386 is about 14602.1705920729. The cubic root of 213223386 is about 597.4179655470.

Adding to 213223386 its reverse (683322312), we get a palindrome (896545698).

The spelling of 213223386 in words is "two hundred thirteen million, two hundred twenty-three thousand, three hundred eighty-six".