2020140240 has 80 divisors (see below), whose sum is σ = 6267830976. Its totient is φ = 538240000.

The previous prime is 2020140223. The next prime is 2020140247. The reversal of 2020140240 is 420410202.

It is a tau number, because it is divible by the number of its divisors (80).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020140247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 345340 + ... + 351140.

Almost surely, 2^2020140240 is an apocalyptic number.

2020140240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2020140240 is an abundant number, since it is smaller than the sum of its proper divisors (4247690736).

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

2020140240 is a wasteful number, since it uses less digits than its factorization.

2020140240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7268 (or 7262 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 2020140240 is about 44945.9702309339. The cubic root of 2020140240 is about 1264.1361180389.

Adding to 2020140240 its reverse (420410202), we get a palindrome (2440550442).

The spelling of 2020140240 in words is "two billion, twenty million, one hundred forty thousand, two hundred forty".