19489248 has 120 divisors (see below), whose sum is σ = 58666608. Its totient is φ = 6345216.

The previous prime is 19489243. The next prime is 19489291. The reversal of 19489248 is 84298491.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19489243) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 189165 + ... + 189267.

Almost surely, 2^19489248 is an apocalyptic number.

19489248 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19489248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29333304).

19489248 is an abundant number, since it is smaller than the sum of its proper divisors (39177360).

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

19489248 is a wasteful number, since it uses less digits than its factorization.

19489248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198 (or 181 counting only the distinct ones).

The product of its digits is 165888, while the sum is 45.

The square root of 19489248 is about 4414.6628410333. The cubic root of 19489248 is about 269.1111511656. Note that the first 4 decimals are identical.

The spelling of 19489248 in words is "nineteen million, four hundred eighty-nine thousand, two hundred forty-eight".