30606020 has 24 divisors (see below), whose sum is σ = 66490200. Its totient is φ = 11820032.

The previous prime is 30606011. The next prime is 30606047. The reversal of 30606020 is 2060603.

It can be written as a sum of positive squares in 4 ways, for example, as 1359556 + 29246464 = 1166^2 + 5408^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 30606020.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25805 + ... + 26964.

It is an arithmetic number, because the mean of its divisors is an integer number (2770425).

Almost surely, 2^30606020 is an apocalyptic number.

It is an amenable number.

30606020 is an abundant number, since it is smaller than the sum of its proper divisors (35884180).

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

30606020 is a wasteful number, since it uses less digits than its factorization.

30606020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52807 (or 52805 counting only the distinct ones).

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

The square root of 30606020 is about 5532.2707815146. The cubic root of 30606020 is about 312.8015904446.

Adding to 30606020 its reverse (2060603), we get a palindrome (32666623).

The spelling of 30606020 in words is "thirty million, six hundred six thousand, twenty".