19705422 has 32 divisors (see below), whose sum is σ = 43182720. Its totient is φ = 5945120.

The previous prime is 19705421. The next prime is 19705459. The reversal of 19705422 is 22450791.

It is a self number, because there is not a number n which added to its sum of digits gives 19705422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19705421) 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 15 ways as a sum of consecutive naturals, for example, 18829 + ... + 19847.

It is an arithmetic number, because the mean of its divisors is an integer number (1349460).

Almost surely, 2^19705422 is an apocalyptic number.

19705422 is an abundant number, since it is smaller than the sum of its proper divisors (23477298).

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

19705422 is a wasteful number, since it uses less digits than its factorization.

19705422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1328.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 19705422 is about 4439.0789585228. The cubic root of 19705422 is about 270.1024850998.

The spelling of 19705422 in words is "nineteen million, seven hundred five thousand, four hundred twenty-two".