42004040440 has 32 divisors (see below), whose sum is σ = 94525872480. Its totient is φ = 16798632832.

The previous prime is 42004040437. The next prime is 42004040461. The reversal of 42004040440 is 4404040024.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142197 + ... + 322843.

It is an arithmetic number, because the mean of its divisors is an integer number (2953933515).

Almost surely, 2^42004040440 is an apocalyptic number.

42004040440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42004040440 is an abundant number, since it is smaller than the sum of its proper divisors (52521832040).

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

42004040440 is a wasteful number, since it uses less digits than its factorization.

42004040440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186471 (or 186467 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

Adding to 42004040440 its reverse (4404040024), we get a palindrome (46408080464).

The spelling of 42004040440 in words is "forty-two billion, four million, forty thousand, four hundred forty".