2020071720 has 64 divisors (see below), whose sum is σ = 6070417920. Its totient is φ = 537778944.

The previous prime is 2020071707. The next prime is 2020071731. The reversal of 2020071720 is 271700202.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58974 + ... + 86706.

It is an arithmetic number, because the mean of its divisors is an integer number (94850280).

Almost surely, 2^2020071720 is an apocalyptic number.

2020071720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2020071720 is an abundant number, since it is smaller than the sum of its proper divisors (4050346200).

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

2020071720 is a wasteful number, since it uses less digits than its factorization.

2020071720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28354 (or 28350 counting only the distinct ones).

The product of its (nonzero) digits is 392, while the sum is 21.

The square root of 2020071720 is about 44945.2079759344. The cubic root of 2020071720 is about 1264.1218253701.

Adding to 2020071720 its reverse (271700202), we get a palindrome (2291771922).

The spelling of 2020071720 in words is "two billion, twenty million, seventy-one thousand, seven hundred twenty".