19748568 has 64 divisors (see below), whose sum is σ = 57600000. Its totient is φ = 5640096.

The previous prime is 19748563. The next prime is 19748621. The reversal of 19748568 is 86584791.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19748563) 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 15 ways as a sum of consecutive naturals, for example, 7033 + ... + 9431.

It is an arithmetic number, because the mean of its divisors is an integer number (900000).

Almost surely, 2^19748568 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 19748568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28800000).

19748568 is an abundant number, since it is smaller than the sum of its proper divisors (37851432).

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

19748568 is a wasteful number, since it uses less digits than its factorization.

19748568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2429 (or 2411 counting only the distinct ones).

The product of its digits is 483840, while the sum is 48.

The square root of 19748568 is about 4443.9360931499. The cubic root of 19748568 is about 270.2994756641.

The spelling of 19748568 in words is "nineteen million, seven hundred forty-eight thousand, five hundred sixty-eight".