216965352 has 16 divisors (see below), whose sum is σ = 542413440. Its totient is φ = 72321776.

The previous prime is 216965347. The next prime is 216965377. The reversal of 216965352 is 253569612.

216965352 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 216965352.

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, 4520088 + ... + 4520135.

It is an arithmetic number, because the mean of its divisors is an integer number (33900840).

Almost surely, 2^216965352 is an apocalyptic number.

It is an amenable number.

216965352 is an abundant number, since it is smaller than the sum of its proper divisors (325448088).

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

216965352 is a wasteful number, since it uses less digits than its factorization.

216965352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9040232 (or 9040228 counting only the distinct ones).

The product of its digits is 97200, while the sum is 39.

The square root of 216965352 is about 14729.7437859591. The cubic root of 216965352 is about 600.8925161444.

The spelling of 216965352 in words is "two hundred sixteen million, nine hundred sixty-five thousand, three hundred fifty-two".