2020773840 has 160 divisors (see below), whose sum is σ = 6437254656. Its totient is φ = 524206080.

The previous prime is 2020773793. The next prime is 2020773841. The reversal of 2020773840 is 483770202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020773841) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1419369 + ... + 1420791.

Almost surely, 2^2020773840 is an apocalyptic number.

2020773840 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 2020773840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3218627328).

2020773840 is an abundant number, since it is smaller than the sum of its proper divisors (4416480816).

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

2020773840 is a wasteful number, since it uses less digits than its factorization.

2020773840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1597 (or 1591 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 33.

The square root of 2020773840 is about 44953.0181411660. The cubic root of 2020773840 is about 1264.2682661121.

The spelling of 2020773840 in words is "two billion, twenty million, seven hundred seventy-three thousand, eight hundred forty".