216608260 has 24 divisors (see below), whose sum is σ = 496230336. Its totient is φ = 78766560.

The previous prime is 216608251. The next prime is 216608269. The reversal of 216608260 is 62806612.

It is an interprime number because it is at equal distance from previous prime (216608251) and next prime (216608269).

It is not an unprimeable number, because it can be changed into a prime (216608269) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 492072 + ... + 492511.

It is an arithmetic number, because the mean of its divisors is an integer number (20676264).

Almost surely, 2^216608260 is an apocalyptic number.

216608260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

216608260 is an abundant number, since it is smaller than the sum of its proper divisors (279622076).

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

216608260 is a wasteful number, since it uses less digits than its factorization.

216608260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 984603 (or 984601 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 216608260 is about 14717.6173343378. The cubic root of 216608260 is about 600.5626758652.

The spelling of 216608260 in words is "two hundred sixteen million, six hundred eight thousand, two hundred sixty".