2021130240 has 160 divisors (see below), whose sum is σ = 6492776400. Its totient is φ = 536870912.

The previous prime is 2021130227. The next prime is 2021130257. The reversal of 2021130240 is 420311202.

It is a tau number, because it is divible by the number of its divisors (160).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

In principle, a polygon with 2021130240 sides can be constructed with ruler and compass.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7864192 + ... + 7864448.

Almost surely, 2^2021130240 is an apocalyptic number.

2021130240 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 2021130240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3246388200).

2021130240 is an abundant number, since it is smaller than the sum of its proper divisors (4471646160).

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

2021130240 is an frugal number, since it uses more digits than its factorization.

2021130240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303 (or 267 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 2021130240 is about 44956.9821051191. The cubic root of 2021130240 is about 1264.3425872648.

Adding to 2021130240 its reverse (420311202), we get a palindrome (2441441442).

The spelling of 2021130240 in words is "two billion, twenty-one million, one hundred thirty thousand, two hundred forty".