215836896 has 144 divisors (see below), whose sum is σ = 659997072. Its totient is φ = 61501440.

The previous prime is 215836891. The next prime is 215836897. The reversal of 215836896 is 698638512.

It is a happy number.

215836896 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215836891) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 196926 + ... + 198018.

It is an arithmetic number, because the mean of its divisors is an integer number (4583313).

Almost surely, 2^215836896 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 215836896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (329998536).

215836896 is an abundant number, since it is smaller than the sum of its proper divisors (444160176).

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

215836896 is a wasteful number, since it uses less digits than its factorization.

215836896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1145 (or 1126 counting only the distinct ones).

The product of its digits is 622080, while the sum is 48.

The square root of 215836896 is about 14691.3884980284. The cubic root of 215836896 is about 599.8489397490.

The spelling of 215836896 in words is "two hundred fifteen million, eight hundred thirty-six thousand, eight hundred ninety-six".