220828886420 has 12 divisors (see below), whose sum is σ = 463740661524. Its totient is φ = 88331554560.

The previous prime is 220828886401. The next prime is 220828886437. The reversal of 220828886420 is 24688828022.

It can be written as a sum of positive squares in 2 ways, for example, as 116289184144 + 104539702276 = 341012^2 + 323326^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5520722141 + ... + 5520722180.

It is an arithmetic number, because the mean of its divisors is an integer number (38645055127).

Almost surely, 2^220828886420 is an apocalyptic number.

220828886420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220828886420 is an abundant number, since it is smaller than the sum of its proper divisors (242911775104).

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

220828886420 is a wasteful number, since it uses less digits than its factorization.

220828886420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11041444330 (or 11041444328 counting only the distinct ones).

The product of its (nonzero) digits is 1572864, while the sum is 50.

The spelling of 220828886420 in words is "two hundred twenty billion, eight hundred twenty-eight million, eight hundred eighty-six thousand, four hundred twenty".