213230404 has 6 divisors (see below), whose sum is σ = 373153214. Its totient is φ = 106615200.

The previous prime is 213230393. The next prime is 213230419. The reversal of 213230404 is 404032312.

It can be written as a sum of positive squares in only one way, i.e., 174292804 + 38937600 = 13202^2 + 6240^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26653797 + ... + 26653804.

Almost surely, 2^213230404 is an apocalyptic number.

It is an amenable number.

213230404 is a deficient number, since it is larger than the sum of its proper divisors (159922810).

213230404 is a wasteful number, since it uses less digits than its factorization.

213230404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53307605 (or 53307603 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 213230404 is about 14602.4108968348. The cubic root of 213230404 is about 597.4245199144.

Adding to 213230404 its reverse (404032312), we get a palindrome (617262716).

The spelling of 213230404 in words is "two hundred thirteen million, two hundred thirty thousand, four hundred four".