19889352 has 192 divisors, whose sum is σ = 67891200. Its totient is φ = 5132160.

The previous prime is 19889351. The next prime is 19889377. The reversal of 19889352 is 25398891.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 19889298 and 19889307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19889351) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 296823 + ... + 296889.

It is an arithmetic number, because the mean of its divisors is an integer number (353600).

Almost surely, 2^19889352 is an apocalyptic number.

19889352 is a gapful number since it is divisible by the number (12) 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 19889352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33945600).

19889352 is an abundant number, since it is smaller than the sum of its proper divisors (48001848).

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

19889352 is a wasteful number, since it uses less digits than its factorization.

19889352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136 (or 129 counting only the distinct ones).

The product of its digits is 155520, while the sum is 45.

The square root of 19889352 is about 4459.7479749421. The cubic root of 19889352 is about 270.9402608843.

The spelling of 19889352 in words is "nineteen million, eight hundred eighty-nine thousand, three hundred fifty-two".