19489422 has 8 divisors (see below), whose sum is σ = 38978856. Its totient is φ = 6496472.

The previous prime is 19489409. The next prime is 19489423. The reversal of 19489422 is 22498491.

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

19489422 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19489423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1624113 + ... + 1624124.

It is an arithmetic number, because the mean of its divisors is an integer number (4872357).

Almost surely, 2^19489422 is an apocalyptic number.

19489422 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

19489422 is a wasteful number, since it uses less digits than its factorization.

19489422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3248242.

The product of its digits is 41472, while the sum is 39.

The square root of 19489422 is about 4414.6825480435. The cubic root of 19489422 is about 269.1119520380. Note that the first 3 decimals are identical.

The spelling of 19489422 in words is "nineteen million, four hundred eighty-nine thousand, four hundred twenty-two".