216741996 has 36 divisors (see below), whose sum is σ = 549221400. Its totient is φ = 72069888.

The previous prime is 216741983. The next prime is 216741997. The reversal of 216741996 is 699147612.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (216741997) 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, 7900 + ... + 22268.

It is an arithmetic number, because the mean of its divisors is an integer number (15256150).

Almost surely, 2^216741996 is an apocalyptic number.

It is an amenable number.

216741996 is an abundant number, since it is smaller than the sum of its proper divisors (332479404).

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

216741996 is a wasteful number, since it uses less digits than its factorization.

216741996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14798 (or 14793 counting only the distinct ones).

The product of its digits is 163296, while the sum is 45.

The square root of 216741996 is about 14722.1600317345. The cubic root of 216741996 is about 600.6862481399.

The spelling of 216741996 in words is "two hundred sixteen million, seven hundred forty-one thousand, nine hundred ninety-six".