19630128 has 80 divisors (see below), whose sum is σ = 59559680. Its totient is φ = 5453568.

The previous prime is 19630123. The next prime is 19630183. The reversal of 19630128 is 82103691.

It is a junction number, because it is equal to n+sod(n) for n = 19630095 and 19630104.

It is not an unprimeable number, because it can be changed into a prime (19630123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11643 + ... + 13221.

It is an arithmetic number, because the mean of its divisors is an integer number (744496).

Almost surely, 2^19630128 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19630128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29779840).

19630128 is an abundant number, since it is smaller than the sum of its proper divisors (39929552).

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

19630128 is a wasteful number, since it uses less digits than its factorization.

19630128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1634 (or 1628 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 19630128 is about 4430.5900284274. The cubic root of 19630128 is about 269.7580273803.

The spelling of 19630128 in words is "nineteen million, six hundred thirty thousand, one hundred twenty-eight".