30280208 has 40 divisors (see below), whose sum is σ = 68870592. Its totient is φ = 12624768.

The previous prime is 30280207. The next prime is 30280219. The reversal of 30280208 is 80208203.

It is not an unprimeable number, because it can be changed into a prime (30280207) 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, 491 + ... + 7797.

Almost surely, 2^30280208 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 30280208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34435296).

30280208 is an abundant number, since it is smaller than the sum of its proper divisors (38590384).

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

30280208 is a wasteful number, since it uses less digits than its factorization.

30280208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7359 (or 7353 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 30280208 is about 5502.7454965681. The cubic root of 30280208 is about 311.6876668372.

The spelling of 30280208 in words is "thirty million, two hundred eighty thousand, two hundred eight".