216932732 has 12 divisors (see below), whose sum is σ = 380626176. Its totient is φ = 108182400.

The previous prime is 216932717. The next prime is 216932741. The reversal of 216932732 is 237239612.

It is a junction number, because it is equal to n+sod(n) for n = 216932692 and 216932701.

It is a congruent number.

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, 69269 + ... + 72332.

It is an arithmetic number, because the mean of its divisors is an integer number (31718848).

Almost surely, 2^216932732 is an apocalyptic number.

It is an amenable number.

216932732 is a deficient number, since it is larger than the sum of its proper divisors (163693444).

216932732 is a wasteful number, since it uses less digits than its factorization.

216932732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141988 (or 141986 counting only the distinct ones).

The product of its digits is 27216, while the sum is 35.

The square root of 216932732 is about 14728.6364609899. The cubic root of 216932732 is about 600.8624005889.

The spelling of 216932732 in words is "two hundred sixteen million, nine hundred thirty-two thousand, seven hundred thirty-two".