42031044420 has 24 divisors (see below), whose sum is σ = 117686924544. Its totient is φ = 11208278496.

The previous prime is 42031044373. The next prime is 42031044499. The reversal of 42031044420 is 2444013024.

It is a happy 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, 350258644 + ... + 350258763.

It is an arithmetic number, because the mean of its divisors is an integer number (4903621856).

Almost surely, 2^42031044420 is an apocalyptic number.

It is an amenable number.

42031044420 is an abundant number, since it is smaller than the sum of its proper divisors (75655880124).

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

42031044420 is a wasteful number, since it uses less digits than its factorization.

42031044420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700517419 (or 700517417 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 42031044420 its reverse (2444013024), we get a palindrome (44475057444).

The spelling of 42031044420 in words is "forty-two billion, thirty-one million, forty-four thousand, four hundred twenty".