30309664 has 48 divisors (see below), whose sum is σ = 74402496. Its totient is φ = 11808000.

The previous prime is 30309613. The next prime is 30309667. The reversal of 30309664 is 46690303.

It is not an unprimeable number, because it can be changed into a prime (30309667) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3687 + ... + 8614.

It is an arithmetic number, because the mean of its divisors is an integer number (1550052).

Almost surely, 2^30309664 is an apocalyptic number.

It is an amenable number.

30309664 is an abundant number, since it is smaller than the sum of its proper divisors (44092832).

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

30309664 is a wasteful number, since it uses less digits than its factorization.

30309664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12329 (or 12321 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 31.

The square root of 30309664 is about 5505.4213281092. The cubic root of 30309664 is about 311.7887019915.

Adding to 30309664 its reverse (46690303), we get a palindrome (76999967).

The spelling of 30309664 in words is "thirty million, three hundred nine thousand, six hundred sixty-four".