220232688 has 120 divisors (see below), whose sum is σ = 652712688. Its totient is φ = 63737856.

The previous prime is 220232657. The next prime is 220232707. The reversal of 220232688 is 886232022.

220232688 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 137106 + ... + 138702.

Almost surely, 2^220232688 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 220232688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (326356344).

220232688 is an abundant number, since it is smaller than the sum of its proper divisors (432480000).

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

220232688 is a wasteful number, since it uses less digits than its factorization.

220232688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1651 (or 1632 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 220232688 is about 14840.2388120946. The cubic root of 220232688 is about 603.8938310240.

The spelling of 220232688 in words is "two hundred twenty million, two hundred thirty-two thousand, six hundred eighty-eight".