42340240532 has 12 divisors (see below), whose sum is σ = 74483356416. Its totient is φ = 21059281560.

The previous prime is 42340240493. The next prime is 42340240543. The reversal of 42340240532 is 23504204324.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 42340240495 and 42340240504.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 27708818 + ... + 27710345.

It is an arithmetic number, because the mean of its divisors is an integer number (6206946368).

Almost surely, 2^42340240532 is an apocalyptic number.

It is an amenable number.

42340240532 is a deficient number, since it is larger than the sum of its proper divisors (32143115884).

42340240532 is a wasteful number, since it uses less digits than its factorization.

42340240532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55419358 (or 55419356 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 29.

Adding to 42340240532 its reverse (23504204324), we get a palindrome (65844444856).

The spelling of 42340240532 in words is "forty-two billion, three hundred forty million, two hundred forty thousand, five hundred thirty-two".