216354760 has 16 divisors (see below), whose sum is σ = 486798300. Its totient is φ = 86541888.

The previous prime is 216354757. The next prime is 216354769. The reversal of 216354760 is 67453612.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 192598884 + 23755876 = 13878^2 + 4874^2 .

It is not an unprimeable number, because it can be changed into a prime (216354769) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2704395 + ... + 2704474.

Almost surely, 2^216354760 is an apocalyptic number.

216354760 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

216354760 is an abundant number, since it is smaller than the sum of its proper divisors (270443540).

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

216354760 is a wasteful number, since it uses less digits than its factorization.

216354760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5408880 (or 5408876 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 216354760 is about 14709.0026854304. The cubic root of 216354760 is about 600.3283018119.

The spelling of 216354760 in words is "two hundred sixteen million, three hundred fifty-four thousand, seven hundred sixty".