30856896 has 112 divisors (see below), whose sum is σ = 103713280. Its totient is φ = 8812800.

The previous prime is 30856867. The next prime is 30856897. The reversal of 30856896 is 69865803.

It is a tau number, because it is divible by the number of its divisors (112).

It is not an unprimeable number, because it can be changed into a prime (30856897) by changing a digit.

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, 10821 + ... + 13371.

Almost surely, 2^30856896 is an apocalyptic number.

30856896 is a gapful number since it is divisible by the number (36) 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 30856896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51856640).

30856896 is an abundant number, since it is smaller than the sum of its proper divisors (72856384).

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

30856896 is a wasteful number, since it uses less digits than its factorization.

30856896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2579 (or 2563 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 30856896 is about 5554.8983789085. The cubic root of 30856896 is about 313.6539387299.

The spelling of 30856896 in words is "thirty million, eight hundred fifty-six thousand, eight hundred ninety-six".