213043232 has 24 divisors (see below), whose sum is σ = 426308652. Its totient is φ = 104774400.

The previous prime is 213043223. The next prime is 213043247. The reversal of 213043232 is 232340312.

It can be written as a sum of positive squares in 2 ways, for example, as 213043216 + 16 = 14596^2 + 4^2 .

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, 52619 + ... + 56522.

Almost surely, 2^213043232 is an apocalyptic number.

It is an amenable number.

213043232 is an abundant number, since it is smaller than the sum of its proper divisors (213265420).

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

213043232 is a wasteful number, since it uses less digits than its factorization.

213043232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109212 (or 109204 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 213043232 is about 14596.0005480954. Note that the first 3 decimals coincide. The cubic root of 213043232 is about 597.2496638672.

Adding to 213043232 its reverse (232340312), we get a palindrome (445383544).

The spelling of 213043232 in words is "two hundred thirteen million, forty-three thousand, two hundred thirty-two".