30840896 has 28 divisors (see below), whose sum is σ = 61775340. Its totient is φ = 15275520.

The previous prime is 30840881. The next prime is 30840899. The reversal of 30840896 is 69804803.

It can be written as a sum of positive squares in 2 ways, for example, as 23658496 + 7182400 = 4864^2 + 2680^2 .

It is not an unprimeable number, because it can be changed into a prime (30840899) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4766 + ... + 9186.

Almost surely, 2^30840896 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 30840896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30887670).

30840896 is an abundant number, since it is smaller than the sum of its proper divisors (30934444).

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

30840896 is a wasteful number, since it uses less digits than its factorization.

30840896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4542 (or 4532 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 30840896 is about 5553.4580218095. The cubic root of 30840896 is about 313.5997171315.

The spelling of 30840896 in words is "thirty million, eight hundred forty thousand, eight hundred ninety-six".