216207672 has 32 divisors (see below), whose sum is σ = 540881280. Its totient is φ = 72020960.

The previous prime is 216207599. The next prime is 216207679. The reversal of 216207672 is 276702612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216207679) 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, 63403 + ... + 66725.

It is an arithmetic number, because the mean of its divisors is an integer number (16902540).

Almost surely, 2^216207672 is an apocalyptic number.

It is an amenable number.

216207672 is an abundant number, since it is smaller than the sum of its proper divisors (324673608).

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

216207672 is a wasteful number, since it uses less digits than its factorization.

216207672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6043 (or 6039 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 216207672 is about 14704.0019042436. The cubic root of 216207672 is about 600.1922272968.

It can be divided in two parts, 21620 and 7672, that added together give a palindrome (29292).

The spelling of 216207672 in words is "two hundred sixteen million, two hundred seven thousand, six hundred seventy-two".