30500208 has 60 divisors (see below), whose sum is σ = 89079120. Its totient is φ = 9723648.

The previous prime is 30500207. The next prime is 30500213. The reversal of 30500208 is 80200503.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30500207) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1293 + ... + 7916.

It is an arithmetic number, because the mean of its divisors is an integer number (1484652).

Almost surely, 2^30500208 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 30500208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44539560).

30500208 is an abundant number, since it is smaller than the sum of its proper divisors (58578912).

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

30500208 is a wasteful number, since it uses less digits than its factorization.

30500208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9246 (or 9237 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 30500208 is about 5522.6993399967. The cubic root of 30500208 is about 312.4406987208.

The spelling of 30500208 in words is "thirty million, five hundred thousand, two hundred eight".