216210952 has 32 divisors (see below), whose sum is σ = 409925880. Its totient is φ = 106905600.

The previous prime is 216210949. The next prime is 216210959. The reversal of 216210952 is 259012612.

It can be written as a sum of positive squares in 4 ways, for example, as 166564836 + 49646116 = 12906^2 + 7046^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 216210952.

It is not an unprimeable number, because it can be changed into a prime (216210959) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 359452 + ... + 360052.

Almost surely, 2^216210952 is an apocalyptic number.

It is an amenable number.

216210952 is a deficient number, since it is larger than the sum of its proper divisors (193714928).

216210952 is a wasteful number, since it uses less digits than its factorization.

216210952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1033 (or 1029 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 216210952 is about 14704.1134380826. The cubic root of 216210952 is about 600.1952623734.

The spelling of 216210952 in words is "two hundred sixteen million, two hundred ten thousand, nine hundred fifty-two".