42040140045 has 8 divisors (see below), whose sum is σ = 67264224096. Its totient is φ = 22421408016.

The previous prime is 42040140041. The next prime is 42040140047. The reversal of 42040140045 is 54004104024.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42040140045 - 2² = 42040140041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42040139997 and 42040140024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42040140041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1401337987 + ... + 1401338016.

It is an arithmetic number, because the mean of its divisors is an integer number (8408028012).

Almost surely, 2^42040140045 is an apocalyptic number.

It is an amenable number.

42040140045 is a deficient number, since it is larger than the sum of its proper divisors (25224084051).

42040140045 is a wasteful number, since it uses less digits than its factorization.

42040140045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2802676011.

The product of its (nonzero) digits is 2560, while the sum is 24.

Adding to 42040140045 its reverse (54004104024), we get a palindrome (96044244069).

The spelling of 42040140045 in words is "forty-two billion, forty million, one hundred forty thousand, forty-five".