220685412 has 24 divisors (see below), whose sum is σ = 515180512. Its totient is φ = 73526400.

The previous prime is 220685393. The next prime is 220685441. The reversal of 220685412 is 214586022.

220685412 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 220685412.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37212 + ... + 42732.

Almost surely, 2^220685412 is an apocalyptic number.

It is an amenable number.

220685412 is an abundant number, since it is smaller than the sum of its proper divisors (294495100).

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

220685412 is a wasteful number, since it uses less digits than its factorization.

220685412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8859 (or 8857 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 220685412 is about 14855.4842398355. The cubic root of 220685412 is about 604.3073483655.

The spelling of 220685412 in words is "two hundred twenty million, six hundred eighty-five thousand, four hundred twelve".