42042440240 has 40 divisors (see below), whose sum is σ = 103498598880. Its totient is φ = 15827741696.

The previous prime is 42042440233. The next prime is 42042440269. The reversal of 42042440240 is 4204424024.

42042440240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15455420 + ... + 15458139.

It is an arithmetic number, because the mean of its divisors is an integer number (2587464972).

Almost surely, 2^42042440240 is an apocalyptic number.

42042440240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42042440240 is an abundant number, since it is smaller than the sum of its proper divisors (61456158640).

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

42042440240 is a wasteful number, since it uses less digits than its factorization.

42042440240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30913589 (or 30913583 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 26.

Adding to 42042440240 its reverse (4204424024), we get a palindrome (46246864264).

The spelling of 42042440240 in words is "forty-two billion, forty-two million, four hundred forty thousand, two hundred forty".