30808860 has 24 divisors (see below), whose sum is σ = 86264976. Its totient is φ = 8215680.

The previous prime is 30808819. The next prime is 30808867. The reversal of 30808860 is 6880803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30808867) 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, 256681 + ... + 256800.

It is an arithmetic number, because the mean of its divisors is an integer number (3594374).

Almost surely, 2^30808860 is an apocalyptic number.

30808860 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30808860 is an abundant number, since it is smaller than the sum of its proper divisors (55456116).

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

30808860 is a wasteful number, since it uses less digits than its factorization.

30808860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513493 (or 513491 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 30808860 is about 5550.5729433996. The cubic root of 30808860 is about 313.4910955452.

The spelling of 30808860 in words is "thirty million, eight hundred eight thousand, eight hundred sixty".