220942332 has 144 divisors (see below), whose sum is σ = 631251712. Its totient is φ = 64696320.

The previous prime is 220942327. The next prime is 220942333. The reversal of 220942332 is 233249022.

220942332 is a `hidden beast` number, since 2 + 209 + 423 + 32 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 220942296 and 220942305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220942333) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1407198 + ... + 1407354.

Almost surely, 2^220942332 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 220942332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (315625856).

220942332 is an abundant number, since it is smaller than the sum of its proper divisors (410309380).

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

220942332 is a wasteful number, since it uses less digits than its factorization.

220942332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308 (or 303 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 220942332 is about 14864.1290360384. The cubic root of 220942332 is about 604.5417671720.

The spelling of 220942332 in words is "two hundred twenty million, nine hundred forty-two thousand, three hundred thirty-two".