215840848 has 40 divisors (see below), whose sum is σ = 435614976. Its totient is φ = 103488000.

The previous prime is 215840843. The next prime is 215840899. The reversal of 215840848 is 848048512.

215840848 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 215840848.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215840843) 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, 54123 + ... + 57973.

Almost surely, 2^215840848 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 215840848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (217807488).

215840848 is an abundant number, since it is smaller than the sum of its proper divisors (219774128).

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

215840848 is a wasteful number, since it uses less digits than its factorization.

215840848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4003 (or 3997 counting only the distinct ones).

The product of its (nonzero) digits is 81920, while the sum is 40.

The square root of 215840848 is about 14691.5229979740. The cubic root of 215840848 is about 599.8526008291.

The spelling of 215840848 in words is "two hundred fifteen million, eight hundred forty thousand, eight hundred forty-eight".