30880209 has 8 divisors (see below), whose sum is σ = 41308960. Its totient is φ = 20519136.

The previous prime is 30880181. The next prime is 30880217. The reversal of 30880209 is 90208803.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30880209 - 2¹¹ = 30878161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30880219) 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, 15844 + ... + 17685.

It is an arithmetic number, because the mean of its divisors is an integer number (5163620).

Almost surely, 2^30880209 is an apocalyptic number.

It is an amenable number.

30880209 is a deficient number, since it is larger than the sum of its proper divisors (10428751).

30880209 is a wasteful number, since it uses less digits than its factorization.

30880209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33839.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 30880209 is about 5556.9964009346. The cubic root of 30880209 is about 313.7329094461.

The spelling of 30880209 in words is "thirty million, eight hundred eighty thousand, two hundred nine".