140032420405 has 8 divisors (see below), whose sum is σ = 168315743232. Its totient is φ = 111841377168.

The previous prime is 140032420403. The next prime is 140032420439. The reversal of 140032420405 is 504024230041.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 140032420405 - 2¹ = 140032420403 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 140032420405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140032420403) 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, 23066557 + ... + 23072626.

It is an arithmetic number, because the mean of its divisors is an integer number (21039467904).

Almost surely, 2^140032420405 is an apocalyptic number.

It is an amenable number.

140032420405 is a deficient number, since it is larger than the sum of its proper divisors (28283322827).

140032420405 is an equidigital number, since it uses as much as digits as its factorization.

140032420405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46139795.

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 140032420405 its reverse (504024230041), we get a palindrome (644056650446).

The spelling of 140032420405 in words is "one hundred forty billion, thirty-two million, four hundred twenty thousand, four hundred five".