216992352 has 48 divisors (see below), whose sum is σ = 603115632. Its totient is φ = 68075520.

The previous prime is 216992351. The next prime is 216992353. The reversal of 216992352 is 253299612.

It is an interprime number because it is at equal distance from previous prime (216992351) and next prime (216992353).

It is a tau number, because it is divible by the number of its divisors (48).

It is a self number, because there is not a number n which added to its sum of digits gives 216992352.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216992351) 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 7 ways as a sum of consecutive naturals, for example, 64849 + ... + 68112.

It is an arithmetic number, because the mean of its divisors is an integer number (12564909).

Almost surely, 2^216992352 is an apocalyptic number.

It is an amenable number.

216992352 is an abundant number, since it is smaller than the sum of its proper divisors (386123280).

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

216992352 is a wasteful number, since it uses less digits than its factorization.

216992352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132991 (or 132983 counting only the distinct ones).

The product of its digits is 58320, while the sum is 39.

The square root of 216992352 is about 14730.6602703341. The cubic root of 216992352 is about 600.9174408998.

The spelling of 216992352 in words is "two hundred sixteen million, nine hundred ninety-two thousand, three hundred fifty-two".