30870896 has 80 divisors (see below), whose sum is σ = 73209600. Its totient is φ = 12317184.

The previous prime is 30870887. The next prime is 30870901. The reversal of 30870896 is 69807803.

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 15 ways as a sum of consecutive naturals, for example, 189311 + ... + 189473.

It is an arithmetic number, because the mean of its divisors is an integer number (915120).

Almost surely, 2^30870896 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 30870896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36604800).

30870896 is an abundant number, since it is smaller than the sum of its proper divisors (42338704).

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

30870896 is a wasteful number, since it uses less digits than its factorization.

30870896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286 (or 280 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 30870896 is about 5556.1583850715. The cubic root of 30870896 is about 313.7013672551.

The spelling of 30870896 in words is "thirty million, eight hundred seventy thousand, eight hundred ninety-six".