19765048 has 8 divisors (see below), whose sum is σ = 37059480. Its totient is φ = 9882520.

The previous prime is 19765043. The next prime is 19765049. The reversal of 19765048 is 84056791.

It is a tau number, because it is divible by the number of its divisors (8).

It is a zygodrome in base 7.

It is a self number, because there is not a number n which added to its sum of digits gives 19765048.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19765043) 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 as a sum of consecutive naturals, namely, 1235308 + ... + 1235323.

It is an arithmetic number, because the mean of its divisors is an integer number (4632435).

Almost surely, 2^19765048 is an apocalyptic number.

It is an amenable number.

19765048 is a deficient number, since it is larger than the sum of its proper divisors (17294432).

19765048 is a wasteful number, since it uses less digits than its factorization.

19765048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2470637 (or 2470633 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 19765048 is about 4445.7899185634. The cubic root of 19765048 is about 270.3746422423.

The spelling of 19765048 in words is "nineteen million, seven hundred sixty-five thousand, forty-eight".