30320668 has 12 divisors (see below), whose sum is σ = 60641392. Its totient is φ = 12994560.

The previous prime is 30320663. The next prime is 30320681. The reversal of 30320668 is 86602303.

30320668 is an admirable number.

It is a Harshad number since it is a multiple of its sum of digits (28), and also a Moran number because the ratio is a prime number: 1082881 = 30320668 / (3 + 0 + 3 + 2 + 0 + 6 + 6 + 8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30320663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 541413 + ... + 541468.

Almost surely, 2^30320668 is an apocalyptic number.

It is an amenable number.

30320668 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

30320668 is a wasteful number, since it uses less digits than its factorization.

30320668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1082892 (or 1082890 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 30320668 is about 5506.4206159719. The cubic root of 30320668 is about 311.8264293179.

The spelling of 30320668 in words is "thirty million, three hundred twenty thousand, six hundred sixty-eight".