216773824 has 56 divisors (see below), whose sum is σ = 456192128. Its totient is φ = 102021120.

The previous prime is 216773807. The next prime is 216773857. The reversal of 216773824 is 428377612.

216773824 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71932 + ... + 74884.

It is an arithmetic number, because the mean of its divisors is an integer number (8146288).

Almost surely, 2^216773824 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 216773824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (228096064).

216773824 is an abundant number, since it is smaller than the sum of its proper divisors (239418304).

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

216773824 is a wasteful number, since it uses less digits than its factorization.

216773824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3033 (or 3023 counting only the distinct ones).

The product of its digits is 112896, while the sum is 40.

The square root of 216773824 is about 14723.2409475631. The cubic root of 216773824 is about 600.7156497733.

The spelling of 216773824 in words is "two hundred sixteen million, seven hundred seventy-three thousand, eight hundred twenty-four".