19764148 has 12 divisors (see below), whose sum is σ = 34618752. Its totient is φ = 9873080.

The previous prime is 19764139. The next prime is 19764163. The reversal of 19764148 is 84146791.

It is a self number, because there is not a number n which added to its sum of digits gives 19764148.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 6333 + ... + 8923.

It is an arithmetic number, because the mean of its divisors is an integer number (2884896).

Almost surely, 2^19764148 is an apocalyptic number.

It is an amenable number.

19764148 is a deficient number, since it is larger than the sum of its proper divisors (14854604).

19764148 is a wasteful number, since it uses less digits than its factorization.

19764148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4502 (or 4500 counting only the distinct ones).

The product of its digits is 48384, while the sum is 40.

The square root of 19764148 is about 4445.6886980534. The cubic root of 19764148 is about 270.3705383503.

The spelling of 19764148 in words is "nineteen million, seven hundred sixty-four thousand, one hundred forty-eight".