19748 has 6 divisors (see below), whose sum is σ = 34566. Its totient is φ = 9872.

The previous prime is 19739. The next prime is 19751. The reversal of 19748 is 84791.

It can be written as a sum of positive squares in only one way, i.e., 16384 + 3364 = 128^2 + 58^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 19748.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2465 + ... + 2472.

It is an arithmetic number, because the mean of its divisors is an integer number (5761).

2¹⁹⁷⁴⁸ is an apocalyptic number.

It is an amenable number.

19748 is a deficient number, since it is larger than the sum of its proper divisors (14818).

19748 is a wasteful number, since it uses less digits than its factorization.

19748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4941 (or 4939 counting only the distinct ones).

The product of its digits is 2016, while the sum is 29.

The square root of 19748 is about 140.5275773647. The cubic root of 19748 is about 27.0296884226.

It can be divided in two parts, 19 and 748, that added together give a palindrome (767).

The spelling of 19748 in words is "nineteen thousand, seven hundred forty-eight".