30606220 has 12 divisors (see below), whose sum is σ = 64273104. Its totient is φ = 12242480.

The previous prime is 30606217. The next prime is 30606227. The reversal of 30606220 is 2260603.

It is not an unprimeable number, because it can be changed into a prime (30606227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 765136 + ... + 765175.

It is an arithmetic number, because the mean of its divisors is an integer number (5356092).

Almost surely, 2^30606220 is an apocalyptic number.

It is an amenable number.

30606220 is an abundant number, since it is smaller than the sum of its proper divisors (33666884).

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

30606220 is a wasteful number, since it uses less digits than its factorization.

30606220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1530320 (or 1530318 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 30606220 is about 5532.2888572453. The cubic root of 30606220 is about 312.8022717940.

Adding to 30606220 its reverse (2260603), we get a palindrome (32866823).

The spelling of 30606220 in words is "thirty million, six hundred six thousand, two hundred twenty".