2020053440 has 28 divisors (see below), whose sum is σ = 4810253016. Its totient is φ = 808021248.

The previous prime is 2020053437. The next prime is 2020053449. The reversal of 2020053440 is 443500202.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020053449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3156014 + ... + 3156653.

Almost surely, 2^2020053440 is an apocalyptic number.

2020053440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2020053440 is an abundant number, since it is smaller than the sum of its proper divisors (2790199576).

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

2020053440 is an equidigital number, since it uses as much as digits as its factorization.

2020053440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6312684 (or 6312674 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 2020053440 is about 44945.0046167536. The cubic root of 2020053440 is about 1264.1180122684.

Adding to 2020053440 its reverse (443500202), we get a palindrome (2463553642).

The spelling of 2020053440 in words is "two billion, twenty million, fifty-three thousand, four hundred forty".