140642022 has 16 divisors (see below), whose sum is σ = 281828160. Its totient is φ = 46789992.

The previous prime is 140641999. The next prime is 140642039. The reversal of 140642022 is 220246041.

It is a self number, because there is not a number n which added to its sum of digits gives 140642022.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 19272 + ... + 25547.

It is an arithmetic number, because the mean of its divisors is an integer number (17614260).

Almost surely, 2^140642022 is an apocalyptic number.

140642022 is an abundant number, since it is smaller than the sum of its proper divisors (141186138).

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

140642022 is a wasteful number, since it uses less digits than its factorization.

140642022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45347.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 140642022 is about 11859.2589144516. The cubic root of 140642022 is about 520.0419369531.

Adding to 140642022 its reverse (220246041), we get a palindrome (360888063).

The spelling of 140642022 in words is "one hundred forty million, six hundred forty-two thousand, twenty-two".