216039936 has 160 divisors (see below), whose sum is σ = 669385728. Its totient is φ = 60641280.

The previous prime is 216039931. The next prime is 216039949. The reversal of 216039936 is 639930612.

It is a junction number, because it is equal to n+sod(n) for n = 216039894 and 216039903.

It is not an unprimeable number, because it can be changed into a prime (216039931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 763251 + ... + 763533.

Almost surely, 2^216039936 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 216039936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (334692864).

216039936 is an abundant number, since it is smaller than the sum of its proper divisors (453345792).

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

216039936 is an equidigital number, since it uses as much as digits as its factorization.

216039936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382 (or 366 counting only the distinct ones).

The product of its (nonzero) digits is 52488, while the sum is 39.

The square root of 216039936 is about 14698.2970442157. The cubic root of 216039936 is about 600.0369754991.

The spelling of 216039936 in words is "two hundred sixteen million, thirty-nine thousand, nine hundred thirty-six".