230621630 has 32 divisors (see below), whose sum is σ = 430401600. Its totient is φ = 88867072.

The previous prime is 230621627. The next prime is 230621669. The reversal of 230621630 is 36126032.

230621630 = 2806² + 2807² + ... + 2834².

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 230621596 and 230621605.

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, 234119 + ... + 235101.

It is an arithmetic number, because the mean of its divisors is an integer number (13450050).

Almost surely, 2^230621630 is an apocalyptic number.

230621630 is a deficient number, since it is larger than the sum of its proper divisors (199779970).

230621630 is a wasteful number, since it uses less digits than its factorization.

230621630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1828.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 230621630 is about 15186.2315931241. The cubic root of 230621630 is about 613.2440537055.

Adding to 230621630 its reverse (36126032), we get a palindrome (266747662).

The spelling of 230621630 in words is "two hundred thirty million, six hundred twenty-one thousand, six hundred thirty".