213243324 has 48 divisors (see below), whose sum is σ = 580758528. Its totient is φ = 59629248.

The previous prime is 213243301. The next prime is 213243341. The reversal of 213243324 is 423342312.

213243324 is nontrivially palindromic in base 16.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 213243294 and 213243303.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23059 + ... + 30954.

It is an arithmetic number, because the mean of its divisors is an integer number (12099136).

Almost surely, 2^213243324 is an apocalyptic number.

It is an amenable number.

213243324 is an abundant number, since it is smaller than the sum of its proper divisors (367515204).

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

213243324 is a wasteful number, since it uses less digits than its factorization.

213243324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54074 (or 54072 counting only the distinct ones).

The product of its digits is 3456, while the sum is 24.

The square root of 213243324 is about 14602.8532828348. The cubic root of 213243324 is about 597.4365860000.

Adding to 213243324 its reverse (423342312), we get a palindrome (636585636).

The spelling of 213243324 in words is "two hundred thirteen million, two hundred forty-three thousand, three hundred twenty-four".