140422506 has 32 divisors (see below), whose sum is σ = 322320768. Its totient is φ = 39951360.

The previous prime is 140422489. The next prime is 140422507. The reversal of 140422506 is 605224041.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (140422507) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3186 + ... + 17058.

It is an arithmetic number, because the mean of its divisors is an integer number (10072524).

Almost surely, 2^140422506 is an apocalyptic number.

140422506 is an abundant number, since it is smaller than the sum of its proper divisors (181898262).

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

140422506 is a wasteful number, since it uses less digits than its factorization.

140422506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14126.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 140422506 is about 11850.0002531646. Note that the first 3 decimals coincide. The cubic root of 140422506 is about 519.7712331984.

Adding to 140422506 its reverse (605224041), we get a palindrome (745646547).

The spelling of 140422506 in words is "one hundred forty million, four hundred twenty-two thousand, five hundred six".