19830164 has 12 divisors (see below), whose sum is σ = 34853364. Its totient is φ = 9872064.

The previous prime is 19830149. The next prime is 19830227. The reversal of 19830164 is 46103891.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2274064 + 17556100 = 1508^2 + 4190^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 19830164.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9707 + ... + 11570.

It is an arithmetic number, because the mean of its divisors is an integer number (2904447).

Almost surely, 2^19830164 is an apocalyptic number.

It is an amenable number.

19830164 is a deficient number, since it is larger than the sum of its proper divisors (15023200).

19830164 is a wasteful number, since it uses less digits than its factorization.

19830164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21514 (or 21512 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 19830164 is about 4453.1072297891. The cubic root of 19830164 is about 270.6712334183.

The spelling of 19830164 in words is "nineteen million, eight hundred thirty thousand, one hundred sixty-four".