19489148 has 24 divisors (see below), whose sum is σ = 39887232. Its totient is φ = 8157744.

The previous prime is 19489139. The next prime is 19489163. The reversal of 19489148 is 84198491.

It is a junction number, because it is equal to n+sod(n) for n = 19489099 and 19489108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6890 + ... + 9297.

It is an arithmetic number, because the mean of its divisors is an integer number (1661968).

Almost surely, 2^19489148 is an apocalyptic number.

It is an amenable number.

19489148 is an abundant number, since it is smaller than the sum of its proper divisors (20398084).

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

19489148 is a wasteful number, since it uses less digits than its factorization.

19489148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16241 (or 16239 counting only the distinct ones).

The product of its digits is 82944, while the sum is 44.

The square root of 19489148 is about 4414.6515151255. The cubic root of 19489148 is about 269.1106908920.

The spelling of 19489148 in words is "nineteen million, four hundred eighty-nine thousand, one hundred forty-eight".