216727480 has 32 divisors (see below), whose sum is σ = 490471200. Its totient is φ = 86187136.

The previous prime is 216727477. The next prime is 216727487. The reversal of 216727480 is 84727612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216727487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8740 + ... + 22579.

It is an arithmetic number, because the mean of its divisors is an integer number (15327225).

Almost surely, 2^216727480 is an apocalyptic number.

216727480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

216727480 is an abundant number, since it is smaller than the sum of its proper divisors (273743720).

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

216727480 is a wasteful number, since it uses less digits than its factorization.

216727480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31503 (or 31499 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 37.

The square root of 216727480 is about 14721.6670251708. The cubic root of 216727480 is about 600.6728377927.

The spelling of 216727480 in words is "two hundred sixteen million, seven hundred twenty-seven thousand, four hundred eighty".