140020422 has 8 divisors (see below), whose sum is σ = 280040856. Its totient is φ = 46673472.

The previous prime is 140020417. The next prime is 140020429. The reversal of 140020422 is 224020041.

140020422 is nontrivially palindromic in base 5.

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

140020422 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140020429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11668363 + ... + 11668374.

It is an arithmetic number, because the mean of its divisors is an integer number (35005107).

Almost surely, 2^140020422 is an apocalyptic number.

140020422 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

140020422 is a wasteful number, since it uses less digits than its factorization.

140020422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23336742.

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 140020422 is about 11833.0225217397. The cubic root of 140020422 is about 519.2746568420.

Adding to 140020422 its reverse (224020041), we get a palindrome (364040463).

The spelling of 140020422 in words is "one hundred forty million, twenty thousand, four hundred twenty-two".