216015260 has 24 divisors (see below), whose sum is σ = 480317040. Its totient is φ = 81323264.

The previous prime is 216015257. The next prime is 216015269. The reversal of 216015260 is 62510612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216015269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 317330 + ... + 318009.

It is an arithmetic number, because the mean of its divisors is an integer number (20013210).

Almost surely, 2^216015260 is an apocalyptic number.

216015260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

216015260 is an abundant number, since it is smaller than the sum of its proper divisors (264301780).

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

216015260 is a wasteful number, since it uses less digits than its factorization.

216015260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 635365 (or 635363 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 216015260 is about 14697.4576032728. The cubic root of 216015260 is about 600.0141292969.

Adding to 216015260 its reverse (62510612), we get a palindrome (278525872).

The spelling of 216015260 in words is "two hundred sixteen million, fifteen thousand, two hundred sixty".