19648134 has 24 divisors (see below), whose sum is σ = 46441512. Its totient is φ = 5953920.

The previous prime is 19648133. The next prime is 19648157. The reversal of 19648134 is 43184691.

19648134 is a `hidden beast` number, since 1 + 9 + 648 + 1 + 3 + 4 = 666.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19648133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49419 + ... + 49814.

It is an arithmetic number, because the mean of its divisors is an integer number (1935063).

Almost surely, 2^19648134 is an apocalyptic number.

19648134 is an abundant number, since it is smaller than the sum of its proper divisors (26793378).

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

19648134 is a wasteful number, since it uses less digits than its factorization.

19648134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99252 (or 99249 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 19648134 is about 4432.6215719369. The cubic root of 19648134 is about 269.8404819057.

The spelling of 19648134 in words is "nineteen million, six hundred forty-eight thousand, one hundred thirty-four".