30206664 has 24 divisors (see below), whose sum is σ = 81809910. Its totient is φ = 10068864.

The previous prime is 30206653. The next prime is 30206711. The reversal of 30206664 is 46660203.

It can be written as a sum of positive squares in only one way, i.e., 30140100 + 66564 = 5490^2 + 258^2 .

It is a tau number, because it is divible by the number of its divisors (24).

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 in 5 ways as a sum of consecutive naturals, for example, 209697 + ... + 209840.

Almost surely, 2^30206664 is an apocalyptic number.

It is an amenable number.

30206664 is an abundant number, since it is smaller than the sum of its proper divisors (51603246).

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

30206664 is a wasteful number, since it uses less digits than its factorization.

30206664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419549 (or 419542 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 30206664 is about 5496.0589516489. The cubic root of 30206664 is about 311.4351218858.

Adding to 30206664 its reverse (46660203), we get a palindrome (76866867).

The spelling of 30206664 in words is "thirty million, two hundred six thousand, six hundred sixty-four".