213304302 has 24 divisors (see below), whose sum is σ = 462689136. Its totient is φ = 71019936.

The previous prime is 213304271. The next prime is 213304307. The reversal of 213304302 is 203403312.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213304307) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 10543 + ... + 23189.

It is an arithmetic number, because the mean of its divisors is an integer number (19278714).

Almost surely, 2^213304302 is an apocalyptic number.

213304302 is an abundant number, since it is smaller than the sum of its proper divisors (249384834).

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

213304302 is a wasteful number, since it uses less digits than its factorization.

213304302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13592 (or 13589 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 213304302 is about 14604.9410132325. The cubic root of 213304302 is about 597.4935272374.

Adding to 213304302 its reverse (203403312), we get a palindrome (416707614).

The spelling of 213304302 in words is "two hundred thirteen million, three hundred four thousand, three hundred two".