220000044420 has 72 divisors (see below), whose sum is σ = 718666819416. Its totient is φ = 54153856512.

The previous prime is 220000044401. The next prime is 220000044427. The reversal of 220000044420 is 24440000022.

220000044420 is a `hidden beast` number, since 2 + 200 + 0 + 0 + 0 + 44 + 420 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 3708079236 + 216291965184 = 60894^2 + 465072^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 220000044393 and 220000044402.

It is not an unprimeable number, because it can be changed into a prime (220000044427) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47006217 + ... + 47010896.

It is an arithmetic number, because the mean of its divisors is an integer number (9981483603).

Almost surely, 2^220000044420 is an apocalyptic number.

220000044420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220000044420 is an abundant number, since it is smaller than the sum of its proper divisors (498666774996).

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

220000044420 is a wasteful number, since it uses less digits than its factorization.

220000044420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94017141 (or 94017136 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

Adding to 220000044420 its reverse (24440000022), we get a palindrome (244440044442).

The spelling of 220000044420 in words is "two hundred twenty billion, forty-four thousand, four hundred twenty".