42239129928 has 32 divisors (see below), whose sum is σ = 105658862400. Its totient is φ = 14071571648.

The previous prime is 42239129923. The next prime is 42239129939. The reversal of 42239129928 is 82992193224.

It is not an unprimeable number, because it can be changed into a prime (42239129923) by changing a digit.

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, 466188 + ... + 549371.

It is an arithmetic number, because the mean of its divisors is an integer number (3301839450).

Almost surely, 2^42239129928 is an apocalyptic number.

It is an amenable number.

42239129928 is an abundant number, since it is smaller than the sum of its proper divisors (63419732472).

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

42239129928 is a wasteful number, since it uses less digits than its factorization.

42239129928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1017301 (or 1017297 counting only the distinct ones).

The product of its digits is 1119744, while the sum is 51.

The spelling of 42239129928 in words is "forty-two billion, two hundred thirty-nine million, one hundred twenty-nine thousand, nine hundred twenty-eight".