216235260 has 36 divisors (see below), whose sum is σ = 655914168. Its totient is φ = 57662688.

The previous prime is 216235249. The next prime is 216235273. The reversal of 216235260 is 62532612.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 600474 + ... + 600833.

It is an arithmetic number, because the mean of its divisors is an integer number (18219838).

Almost surely, 2^216235260 is an apocalyptic number.

216235260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

216235260 is an abundant number, since it is smaller than the sum of its proper divisors (439678908).

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

216235260 is a wasteful number, since it uses less digits than its factorization.

216235260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1201322 (or 1201317 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 216235260 is about 14704.9399862767. The cubic root of 216235260 is about 600.2177542956.

Adding to 216235260 its reverse (62532612), we get a palindrome (278767872).

The spelling of 216235260 in words is "two hundred sixteen million, two hundred thirty-five thousand, two hundred sixty".