2020043440 has 20 divisors (see below), whose sum is σ = 4696601184. Its totient is φ = 808017344.

The previous prime is 2020043429. The next prime is 2020043549. The reversal of 2020043440 is 443400202.

It is a tau number, because it is divible by the number of its divisors (20).

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, 12625192 + ... + 12625351.

Almost surely, 2^2020043440 is an apocalyptic number.

2020043440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2020043440 is an abundant number, since it is smaller than the sum of its proper divisors (2676557744).

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

2020043440 is a wasteful number, since it uses less digits than its factorization.

2020043440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25250556 (or 25250550 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 2020043440 is about 44944.8933695476. The cubic root of 2020043440 is about 1264.1159263168.

Adding to 2020043440 its reverse (443400202), we get a palindrome (2463443642).

The spelling of 2020043440 in words is "two billion, twenty million, forty-three thousand, four hundred forty".