216940752 has 120 divisors (see below), whose sum is σ = 702496704. Its totient is φ = 61212672.

The previous prime is 216940741. The next prime is 216940771. The reversal of 216940752 is 257049612.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 82368 + ... + 84960.

Almost surely, 2^216940752 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 216940752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (351248352).

216940752 is an abundant number, since it is smaller than the sum of its proper divisors (485555952).

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

216940752 is a wasteful number, since it uses less digits than its factorization.

216940752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2697 (or 2688 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 216940752 is about 14728.9087172132. The cubic root of 216940752 is about 600.8698051224.

The spelling of 216940752 in words is "two hundred sixteen million, nine hundred forty thousand, seven hundred fifty-two".