30808500 has 192 divisors, whose sum is σ = 100638720. Its totient is φ = 7286400.

The previous prime is 30808489. The next prime is 30808517. The reversal of 30808500 is 580803.

It is a congruent number.

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 in 63 ways as a sum of consecutive naturals, for example, 655477 + ... + 655523.

It is an arithmetic number, because the mean of its divisors is an integer number (524160).

Almost surely, 2^30808500 is an apocalyptic number.

30808500 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30808500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50319360).

30808500 is an abundant number, since it is smaller than the sum of its proper divisors (69830220).

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

30808500 is a wasteful number, since it uses less digits than its factorization.

30808500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111 (or 99 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 30808500 is about 5550.5405142202. The cubic root of 30808500 is about 313.4898744978.

The spelling of 30808500 in words is "thirty million, eight hundred eight thousand, five hundred".