216880484 has 12 divisors (see below), whose sum is σ = 379643964. Its totient is φ = 108410784.

The previous prime is 216880471. The next prime is 216880507. The reversal of 216880484 is 484088612.

It can be written as a sum of positive squares in 2 ways, for example, as 192654400 + 24226084 = 13880^2 + 4922^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25094 + ... + 32610.

It is an arithmetic number, because the mean of its divisors is an integer number (31636997).

Almost surely, 2^216880484 is an apocalyptic number.

It is an amenable number.

216880484 is a deficient number, since it is larger than the sum of its proper divisors (162763480).

216880484 is a wasteful number, since it uses less digits than its factorization.

216880484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14734 (or 14732 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 41.

The square root of 216880484 is about 14726.8626665696. The cubic root of 216880484 is about 600.8141577086.

The spelling of 216880484 in words is "two hundred sixteen million, eight hundred eighty thousand, four hundred eighty-four".