19708122 has 16 divisors (see below), whose sum is σ = 45047232. Its totient is φ = 5630880.

The previous prime is 19708121. The next prime is 19708127. The reversal of 19708122 is 22180791.

It is a self number, because there is not a number n which added to its sum of digits gives 19708122.

It is not an unprimeable number, because it can be changed into a prime (19708121) by changing a digit.

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, 234579 + ... + 234662.

It is an arithmetic number, because the mean of its divisors is an integer number (2815452).

Almost surely, 2^19708122 is an apocalyptic number.

19708122 is an abundant number, since it is smaller than the sum of its proper divisors (25339110).

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

19708122 is a wasteful number, since it uses less digits than its factorization.

19708122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469253.

The product of its (nonzero) digits is 2016, while the sum is 30.

The square root of 19708122 is about 4439.3830652468. The cubic root of 19708122 is about 270.1148208486.

The spelling of 19708122 in words is "nineteen million, seven hundred eight thousand, one hundred twenty-two".