42421243234040 has 64 divisors (see below), whose sum is σ = 104166175482720. Its totient is φ = 15419787264000.

The previous prime is 42421243234031. The next prime is 42421243234121. The reversal of 42421243234040 is 4043234212424.

42421243234040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18012521 + ... + 20231000.

Almost surely, 2^{42421243234040} is an apocalyptic number.

42421243234040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42421243234040 is an abundant number, since it is smaller than the sum of its proper divisors (61744932248680).

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

42421243234040 is a wasteful number, since it uses less digits than its factorization.

42421243234040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38246064 (or 38246060 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 35.

Adding to 42421243234040 its reverse (4043234212424), we get a palindrome (46464477446464).

The spelling of 42421243234040 in words is "forty-two trillion, four hundred twenty-one billion, two hundred forty-three million, two hundred thirty-four thousand, forty".