19948136 has 32 divisors (see below), whose sum is σ = 40975200. Its totient is φ = 9048000.

The previous prime is 19948129. The next prime is 19948141. The reversal of 19948136 is 63184991.

It is a junction number, because it is equal to n+sod(n) for n = 19948093 and 19948102.

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, 4511 + ... + 7761.

It is an arithmetic number, because the mean of its divisors is an integer number (1280475).

Almost surely, 2^19948136 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 19948136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20487600).

19948136 is an abundant number, since it is smaller than the sum of its proper divisors (21027064).

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

19948136 is a wasteful number, since it uses less digits than its factorization.

19948136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3329 (or 3325 counting only the distinct ones).

The product of its digits is 46656, while the sum is 41.

The square root of 19948136 is about 4466.3336194243. Note that the first 3 decimals coincide. The cubic root of 19948136 is about 271.2069242902.

The spelling of 19948136 in words is "nineteen million, nine hundred forty-eight thousand, one hundred thirty-six".