220913332 has 6 divisors (see below), whose sum is σ = 386598338. Its totient is φ = 110456664.

The previous prime is 220913311. The next prime is 220913333. The reversal of 220913332 is 233319022.

It can be written as a sum of positive squares in only one way, i.e., 215913636 + 4999696 = 14694^2 + 2236^2 .

It is a junction number, because it is equal to n+sod(n) for n = 220913297 and 220913306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220913333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27614163 + ... + 27614170.

Almost surely, 2^220913332 is an apocalyptic number.

It is an amenable number.

220913332 is a deficient number, since it is larger than the sum of its proper divisors (165685006).

220913332 is a wasteful number, since it uses less digits than its factorization.

220913332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55228337 (or 55228335 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 220913332 is about 14863.1535011921. The cubic root of 220913332 is about 604.5153161094.

The spelling of 220913332 in words is "two hundred twenty million, nine hundred thirteen thousand, three hundred thirty-two".