42040402232 has 8 divisors (see below), whose sum is σ = 78825754200. Its totient is φ = 21020201112.

The previous prime is 42040402213. The next prime is 42040402237. The reversal of 42040402232 is 23220404024.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 42040402198 and 42040402207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42040402237) 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 as a sum of consecutive naturals, namely, 2627525132 + ... + 2627525147.

It is an arithmetic number, because the mean of its divisors is an integer number (9853219275).

Almost surely, 2^42040402232 is an apocalyptic number.

It is an amenable number.

42040402232 is a deficient number, since it is larger than the sum of its proper divisors (36785351968).

42040402232 is a wasteful number, since it uses less digits than its factorization.

42040402232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5255050285 (or 5255050281 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 23.

Adding to 42040402232 its reverse (23220404024), we get a palindrome (65260806256).

The spelling of 42040402232 in words is "forty-two billion, forty million, four hundred two thousand, two hundred thirty-two".