140805822 has 16 divisors (see below), whose sum is σ = 288161280. Its totient is φ = 45843672.

The previous prime is 140805809. The next prime is 140805853. The reversal of 140805822 is 228508041.

It is a self number, because there is not a number n which added to its sum of digits gives 140805822.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 272622 + ... + 273137.

It is an arithmetic number, because the mean of its divisors is an integer number (18010080).

Almost surely, 2^140805822 is an apocalyptic number.

140805822 is an abundant number, since it is smaller than the sum of its proper divisors (147355458).

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

140805822 is a wasteful number, since it uses less digits than its factorization.

140805822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545807.

The product of its (nonzero) digits is 5120, while the sum is 30.

The square root of 140805822 is about 11866.1629012921. The cubic root of 140805822 is about 520.2437491374.

The spelling of 140805822 in words is "one hundred forty million, eight hundred five thousand, eight hundred twenty-two".