216080240 has 40 divisors (see below), whose sum is σ = 503003520. Its totient is φ = 86326016.

The previous prime is 216080237. The next prime is 216080257. The reversal of 216080240 is 42080612.

216080240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

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, 114182 + ... + 116058.

It is an arithmetic number, because the mean of its divisors is an integer number (12575088).

Almost surely, 2^216080240 is an apocalyptic number.

216080240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

216080240 is an abundant number, since it is smaller than the sum of its proper divisors (286923280).

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

216080240 is a wasteful number, since it uses less digits than its factorization.

216080240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3329 (or 3323 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 216080240 is about 14699.6680234623. The cubic root of 216080240 is about 600.0742870983.

The spelling of 216080240 in words is "two hundred sixteen million, eighty thousand, two hundred forty".