42040238328 has 96 divisors (see below), whose sum is σ = 128810223360. Its totient is φ = 12739459680.

The previous prime is 42040238297. The next prime is 42040238369. The reversal of 42040238328 is 82383204024.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 42040238292 and 42040238301.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 961600 + ... + 1004367.

It is an arithmetic number, because the mean of its divisors is an integer number (1341773160).

Almost surely, 2^42040238328 is an apocalyptic number.

It is an amenable number.

42040238328 is an abundant number, since it is smaller than the sum of its proper divisors (86769985032).

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

42040238328 is a wasteful number, since it uses less digits than its factorization.

42040238328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1965999 (or 1965983 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 36.

The spelling of 42040238328 in words is "forty-two billion, forty million, two hundred thirty-eight thousand, three hundred twenty-eight".