2220578082 has 54 divisors (see below), whose sum is σ = 4995922737. Its totient is φ = 712802832.

The previous prime is 2220578077. The next prime is 2220578083. The reversal of 2220578082 is 2808750222.

2220578082 is a `hidden beast` number, since 2 + 2 + 2 + 0 + 578 + 0 + 82 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2219257881 + 1320201 = 47109^2 + 1149^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=33321.

It is not an unprimeable number, because it can be changed into a prime (2220578083) by changing a digit.

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 26 ways as a sum of consecutive naturals, for example, 5797663 + ... + 5798045.

Almost surely, 2^2220578082 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2220578082

2220578082 is an abundant number, since it is smaller than the sum of its proper divisors (2775344655).

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

2220578082 is an equidigital number, since it uses as much as digits as its factorization.

2220578082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 832 (or 417 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 36.

The square root of 2220578082 is about 47123.0101118339. The cubic root of 2220578082 is about 1304.6339714194.

The spelling of 2220578082 in words is "two billion, two hundred twenty million, five hundred seventy-eight thousand, eighty-two".