30306664 has 8 divisors (see below), whose sum is σ = 56825010. Its totient is φ = 15153328.

The previous prime is 30306649. The next prime is 30306697. The reversal of 30306664 is 46660303.

It can be written as a sum of positive squares in only one way, i.e., 19873764 + 10432900 = 4458^2 + 3230^2 .

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 1894159 + ... + 1894174.

Almost surely, 2^30306664 is an apocalyptic number.

It is an amenable number.

30306664 is a deficient number, since it is larger than the sum of its proper divisors (26518346).

30306664 is a wasteful number, since it uses less digits than its factorization.

30306664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3788339 (or 3788335 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 28.

The square root of 30306664 is about 5505.1488626558. The cubic root of 30306664 is about 311.7784148768.

Adding to 30306664 its reverse (46660303), we get a palindrome (76966967).

The spelling of 30306664 in words is "thirty million, three hundred six thousand, six hundred sixty-four".