42240332556 has 72 divisors (see below), whose sum is σ = 107552128320. Its totient is φ = 13977771264.

The previous prime is 42240332549. The next prime is 42240332557. The reversal of 42240332556 is 65523304224.

42240332556 is a `hidden beast` number, since 42 + 240 + 3 + 325 + 56 = 666.

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

It is a self number, because there is not a number n which added to its sum of digits gives 42240332556.

It is not an unprimeable number, because it can be changed into a prime (42240332557) by changing a digit.

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, 4473216 + ... + 4482648.

It is an arithmetic number, because the mean of its divisors is an integer number (1493779560).

Almost surely, 2^42240332556 is an apocalyptic number.

It is an amenable number.

42240332556 is an abundant number, since it is smaller than the sum of its proper divisors (65311795764).

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

42240332556 is a wasteful number, since it uses less digits than its factorization.

42240332556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10335 (or 10330 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 36.

The spelling of 42240332556 in words is "forty-two billion, two hundred forty million, three hundred thirty-two thousand, five hundred fifty-six".