42004202440440 has 32 divisors (see below), whose sum is σ = 126012607321680. Its totient is φ = 11201120650752.

The previous prime is 42004202440393. The next prime is 42004202440457. The reversal of 42004202440440 is 4404420240024.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 42004202440398 and 42004202440407.

It is a congruent number.

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, 175017510049 + ... + 175017510288.

Almost surely, 2^{42004202440440} is an apocalyptic number.

42004202440440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42004202440440 is an abundant number, since it is smaller than the sum of its proper divisors (84008404881240).

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

42004202440440 is a wasteful number, since it uses less digits than its factorization.

42004202440440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350035020351 (or 350035020347 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 30.

Adding to 42004202440440 its reverse (4404420240024), we get a palindrome (46408622680464).

The spelling of 42004202440440 in words is "forty-two trillion, four billion, two hundred two million, four hundred forty thousand, four hundred forty".