42042224028 has 108 divisors (see below), whose sum is σ = 114826087320. Its totient is φ = 11937631104.

The previous prime is 42042224011. The next prime is 42042224033. The reversal of 42042224028 is 82042224024.

It is a junction number, because it is equal to n+sod(n) for n = 42042223986 and 42042224004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 17597058 + ... + 17599446.

Almost surely, 2^42042224028 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42042224028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57413043660).

42042224028 is an abundant number, since it is smaller than the sum of its proper divisors (72783863292).

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

42042224028 is a wasteful number, since it uses less digits than its factorization.

42042224028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2756 (or 2574 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 30.

The spelling of 42042224028 in words is "forty-two billion, forty-two million, two hundred twenty-four thousand, twenty-eight".