213530344 has 16 divisors (see below), whose sum is σ = 417777120. Its totient is φ = 102123120.

The previous prime is 213530327. The next prime is 213530351. The reversal of 213530344 is 443035312.

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, 580062 + ... + 580429.

It is an arithmetic number, because the mean of its divisors is an integer number (26111070).

Almost surely, 2^213530344 is an apocalyptic number.

It is an amenable number.

213530344 is a deficient number, since it is larger than the sum of its proper divisors (204246776).

213530344 is a wasteful number, since it uses less digits than its factorization.

213530344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1160520 (or 1160516 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 213530344 is about 14612.6775096147. The cubic root of 213530344 is about 597.7045105615.

Adding to 213530344 its reverse (443035312), we get a palindrome (656565656).

The spelling of 213530344 in words is "two hundred thirteen million, five hundred thirty thousand, three hundred forty-four".