2042340040 has 128 divisors (see below), whose sum is σ = 5098262400. Its totient is φ = 731566080.

The previous prime is 2042340037. The next prime is 2042340043. The reversal of 2042340040 is 400432402.

It is an interprime number because it is at equal distance from previous prime (2042340037) and next prime (2042340043).

It is not an unprimeable number, because it can be changed into a prime (2042340043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5388571 + ... + 5388949.

It is an arithmetic number, because the mean of its divisors is an integer number (39830175).

Almost surely, 2^2042340040 is an apocalyptic number.

2042340040 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 2042340040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2549131200).

2042340040 is an abundant number, since it is smaller than the sum of its proper divisors (3055922360).

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

2042340040 is a wasteful number, since it uses less digits than its factorization.

2042340040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 687 (or 683 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 2042340040 is about 45192.2564163375. The cubic root of 2042340040 is about 1268.7498889725.

Adding to 2042340040 its reverse (400432402), we get a palindrome (2442772442).

The spelling of 2042340040 in words is "two billion, forty-two million, three hundred forty thousand, forty".