213530322 has 64 divisors (see below), whose sum is σ = 466560000. Its totient is φ = 64928448.

The previous prime is 213530281. The next prime is 213530323. The reversal of 213530322 is 223035312.

It is not an unprimeable number, because it can be changed into a prime (213530323) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 356179 + ... + 356777.

It is an arithmetic number, because the mean of its divisors is an integer number (7290000).

Almost surely, 2^213530322 is an apocalyptic number.

213530322 is an abundant number, since it is smaller than the sum of its proper divisors (253029678).

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

213530322 is a wasteful number, since it uses less digits than its factorization.

213530322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 735.

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 213530322 is about 14612.6767568437. The cubic root of 213530322 is about 597.7044900343.

Adding to 213530322 its reverse (223035312), we get a palindrome (436565634).

The spelling of 213530322 in words is "two hundred thirteen million, five hundred thirty thousand, three hundred twenty-two".