42239105604 has 72 divisors (see below), whose sum is σ = 108640092288. Its totient is φ = 13834307520.

The previous prime is 42239105581. The next prime is 42239105611. The reversal of 42239105604 is 40650193224.

It is a happy number.

42239105604 is a `hidden beast` number, since 4 + 2 + 2 + 3 + 91 + 0 + 560 + 4 = 666.

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

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, 935509 + ... + 979619.

Almost surely, 2^42239105604 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 42239105604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54320046144).

42239105604 is an abundant number, since it is smaller than the sum of its proper divisors (66400986684).

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

42239105604 is a wasteful number, since it uses less digits than its factorization.

42239105604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44585 (or 44580 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

Adding to 42239105604 its reverse (40650193224), we get a palindrome (82889298828).

The spelling of 42239105604 in words is "forty-two billion, two hundred thirty-nine million, one hundred five thousand, six hundred four".