220213686 has 64 divisors (see below), whose sum is σ = 578027520. Its totient is φ = 54185760.

The previous prime is 220213639. The next prime is 220213687. The reversal of 220213686 is 686312022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220213687) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3766 + ... + 21321.

It is an arithmetic number, because the mean of its divisors is an integer number (9031680).

Almost surely, 2^220213686 is an apocalyptic number.

220213686 is an abundant number, since it is smaller than the sum of its proper divisors (357813834).

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

220213686 is a wasteful number, since it uses less digits than its factorization.

220213686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25129.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 220213686 is about 14839.5985794765. The cubic root of 220213686 is about 603.8764622421.

The spelling of 220213686 in words is "two hundred twenty million, two hundred thirteen thousand, six hundred eighty-six".