42040244024440 has 64 divisors (see below), whose sum is σ = 94723206701760. Its totient is φ = 16792516608000.

The previous prime is 42040244024431. The next prime is 42040244024473. The reversal of 42040244024440 is 4442044204024.

42040244024440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 42040244024396 and 42040244024405.

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, 787583032 + ... + 787636408.

It is an arithmetic number, because the mean of its divisors is an integer number (1480050104715).

Almost surely, 2^{42040244024440} is an apocalyptic number.

42040244024440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42040244024440 is an abundant number, since it is smaller than the sum of its proper divisors (52682962677320).

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

42040244024440 is a wasteful number, since it uses less digits than its factorization.

42040244024440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80632 (or 80628 counting only the distinct ones).

The product of its (nonzero) digits is 131072, while the sum is 34.

Adding to 42040244024440 its reverse (4442044204024), we get a palindrome (46482288228464).

The spelling of 42040244024440 in words is "forty-two trillion, forty billion, two hundred forty-four million, twenty-four thousand, four hundred forty".