19804022 has 8 divisors (see below), whose sum is σ = 33949776. Its totient is φ = 8487432.

The previous prime is 19804021. The next prime is 19804027. The reversal of 19804022 is 22040891.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 19803982 and 19804000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19804021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 707273 + ... + 707300.

It is an arithmetic number, because the mean of its divisors is an integer number (4243722).

Almost surely, 2^19804022 is an apocalyptic number.

19804022 is a deficient number, since it is larger than the sum of its proper divisors (14145754).

19804022 is a wasteful number, since it uses less digits than its factorization.

19804022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1414582.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 19804022 is about 4450.1710079501. The cubic root of 19804022 is about 270.5522396297.

The spelling of 19804022 in words is "nineteen million, eight hundred four thousand, twenty-two".