2020004420 has 72 divisors (see below), whose sum is σ = 4956681240. Its totient is φ = 689472000.

The previous prime is 2020004377. The next prime is 2020004477. The reversal of 2020004420 is 244000202.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 316626436 + 1703377984 = 17794^2 + 41272^2 .

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 2020004395 and 2020004404.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 219920 + ... + 228920.

It is an arithmetic number, because the mean of its divisors is an integer number (68842795).

Almost surely, 2^2020004420 is an apocalyptic number.

2020004420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2020004420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2478340620).

2020004420 is an abundant number, since it is smaller than the sum of its proper divisors (2936676820).

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

2020004420 is a wasteful number, since it uses less digits than its factorization.

2020004420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9253 (or 9244 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 2020004420 is about 44944.4592803162. The cubic root of 2020004420 is about 1264.1077868679.

Adding to 2020004420 its reverse (244000202), we get a palindrome (2264004622).

The spelling of 2020004420 in words is "two billion, twenty million, four thousand, four hundred twenty".