30660064 has 48 divisors (see below), whose sum is σ = 62339760. Its totient is φ = 14837760.

The previous prime is 30660043. The next prime is 30660067. The reversal of 30660064 is 46006603.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30660067) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 220507 + ... + 220645.

It is an arithmetic number, because the mean of its divisors is an integer number (1298745).

Almost surely, 2^30660064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30660064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31169880).

30660064 is an abundant number, since it is smaller than the sum of its proper divisors (31679696).

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

30660064 is a wasteful number, since it uses less digits than its factorization.

30660064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323 (or 315 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 30660064 is about 5537.1530591090. The cubic root of 30660064 is about 312.9855968221.

Adding to 30660064 its reverse (46006603), we get a palindrome (76666667).

The spelling of 30660064 in words is "thirty million, six hundred sixty thousand, sixty-four".