2020331540 has 12 divisors (see below), whose sum is σ = 4242696276. Its totient is φ = 808132608.

The previous prime is 2020331491. The next prime is 2020331563. The reversal of 2020331540 is 451330202.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 731377936 + 1288953604 = 27044^2 + 35902^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 101016577 = 2020331540 / (2 + 0 + 2 + 0 + 3 + 3 + 1 + 5 + 4 + 0).

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, 50508269 + ... + 50508308.

It is an arithmetic number, because the mean of its divisors is an integer number (353558023).

Almost surely, 2^2020331540 is an apocalyptic number.

2020331540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2020331540 is an abundant number, since it is smaller than the sum of its proper divisors (2222364736).

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

2020331540 is a wasteful number, since it uses less digits than its factorization.

2020331540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101016586 (or 101016584 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 2020331540 is about 44948.0982912514. The cubic root of 2020331540 is about 1264.1760198242.

Adding to 2020331540 its reverse (451330202), we get a palindrome (2471661742).

The spelling of 2020331540 in words is "two billion, twenty million, three hundred thirty-one thousand, five hundred forty".