216368932 has 12 divisors (see below), whose sum is σ = 407772316. Its totient is φ = 99862560.

The previous prime is 216368927. The next prime is 216368939. The reversal of 216368932 is 239863612.

It can be written as a sum of positive squares in 2 ways, for example, as 128459556 + 87909376 = 11334^2 + 9376^2 .

It is not an unprimeable number, because it can be changed into a prime (216368939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2080419 + ... + 2080522.

Almost surely, 2^216368932 is an apocalyptic number.

It is an amenable number.

216368932 is a deficient number, since it is larger than the sum of its proper divisors (191403384).

216368932 is a wasteful number, since it uses less digits than its factorization.

216368932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4160958 (or 4160956 counting only the distinct ones).

The product of its digits is 93312, while the sum is 40.

The square root of 216368932 is about 14709.4844233236. The cubic root of 216368932 is about 600.3414093996.

The spelling of 216368932 in words is "two hundred sixteen million, three hundred sixty-eight thousand, nine hundred thirty-two".