4042140240 has 80 divisors (see below), whose sum is σ = 12652368768. Its totient is φ = 1067432448.

The previous prime is 4042140239. The next prime is 4042140247. The reversal of 4042140240 is 420412404.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4042140247) 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, 57039 + ... + 106478.

Almost surely, 2^4042140240 is an apocalyptic number.

4042140240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4042140240 is an abundant number, since it is smaller than the sum of its proper divisors (8610228528).

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

4042140240 is a wasteful number, since it uses less digits than its factorization.

4042140240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163636 (or 163630 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 21.

The square root of 4042140240 is about 63577.8282107843. The cubic root of 4042140240 is about 1592.9560451120.

Adding to 4042140240 its reverse (420412404), we get a palindrome (4462552644).

The spelling of 4042140240 in words is "four billion, forty-two million, one hundred forty thousand, two hundred forty".