30621230 has 8 divisors (see below), whose sum is σ = 55118232. Its totient is φ = 12248488.

The previous prime is 30621223. The next prime is 30621263. The reversal of 30621230 is 3212603.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 30621199 and 30621208.

It is a congruent number.

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, 1531052 + ... + 1531071.

It is an arithmetic number, because the mean of its divisors is an integer number (6889779).

Almost surely, 2^30621230 is an apocalyptic number.

30621230 is a deficient number, since it is larger than the sum of its proper divisors (24497002).

30621230 is a wasteful number, since it uses less digits than its factorization.

30621230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3062130.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 30621230 is about 5533.6452723318. The cubic root of 30621230 is about 312.8533985995.

Adding to 30621230 its reverse (3212603), we get a palindrome (33833833).

The spelling of 30621230 in words is "thirty million, six hundred twenty-one thousand, two hundred thirty".