2020045140 has 144 divisors (see below), whose sum is σ = 6247777536. Its totient is φ = 528192000.

The previous prime is 2020045133. The next prime is 2020045151. The reversal of 2020045140 is 415400202.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3360840 + ... + 3361440.

It is an arithmetic number, because the mean of its divisors is an integer number (43387344).

Almost surely, 2^2020045140 is an apocalyptic number.

2020045140 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 2020045140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3123888768).

2020045140 is an abundant number, since it is smaller than the sum of its proper divisors (4227732396).

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

2020045140 is a wasteful number, since it uses less digits than its factorization.

2020045140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 950 (or 945 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 2020045140 is about 44944.9122815920. The cubic root of 2020045140 is about 1264.1162809291.

Adding to 2020045140 its reverse (415400202), we get a palindrome (2435445342).

The spelling of 2020045140 in words is "two billion, twenty million, forty-five thousand, one hundred forty".