2040142420 has 12 divisors (see below), whose sum is σ = 4284299124. Its totient is φ = 816056960.

The previous prime is 2040142397. The next prime is 2040142421. The reversal of 2040142420 is 242410402.

It can be written as a sum of positive squares in 2 ways, for example, as 1074921796 + 965220624 = 32786^2 + 31068^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2040142421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51003541 + ... + 51003580.

It is an arithmetic number, because the mean of its divisors is an integer number (357024927).

Almost surely, 2^2040142420 is an apocalyptic number.

2040142420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2040142420 is an abundant number, since it is smaller than the sum of its proper divisors (2244156704).

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

2040142420 is a wasteful number, since it uses less digits than its factorization.

2040142420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102007130 (or 102007128 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 2040142420 is about 45167.9357509284. The cubic root of 2040142420 is about 1268.2946544950.

Adding to 2040142420 its reverse (242410402), we get a palindrome (2282552822).

The spelling of 2040142420 in words is "two billion, forty million, one hundred forty-two thousand, four hundred twenty".