216933752 has 16 divisors (see below), whose sum is σ = 464858160. Its totient is φ = 92971584.

The previous prime is 216933733. The next prime is 216933767. The reversal of 216933752 is 257339612.

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, 1936853 + ... + 1936964.

It is an arithmetic number, because the mean of its divisors is an integer number (29053635).

Almost surely, 2^216933752 is an apocalyptic number.

It is an amenable number.

216933752 is an abundant number, since it is smaller than the sum of its proper divisors (247924408).

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

216933752 is a wasteful number, since it uses less digits than its factorization.

216933752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3873830 (or 3873826 counting only the distinct ones).

The product of its digits is 68040, while the sum is 38.

The square root of 216933752 is about 14728.6710873724. The cubic root of 216933752 is about 600.8633423227.

The spelling of 216933752 in words is "two hundred sixteen million, nine hundred thirty-three thousand, seven hundred fifty-two".