216487600 has 60 divisors (see below), whose sum is σ = 594420784. Its totient is φ = 74223360.

The previous prime is 216487561. The next prime is 216487603. The reversal of 216487600 is 6784612.

It is not an unprimeable number, because it can be changed into a prime (216487603) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35859 + ... + 41458.

Almost surely, 2^216487600 is an apocalyptic number.

216487600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

216487600 is an abundant number, since it is smaller than the sum of its proper divisors (377933184).

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

216487600 is a wasteful number, since it uses less digits than its factorization.

216487600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77342 (or 77331 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 216487600 is about 14713.5175943756. The cubic root of 216487600 is about 600.4511421810.

The spelling of 216487600 in words is "two hundred sixteen million, four hundred eighty-seven thousand, six hundred".