19380648 has 32 divisors (see below), whose sum is σ = 55373760. Its totient is φ = 5537280.

The previous prime is 19380623. The next prime is 19380653. The reversal of 19380648 is 84608391.

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 7 ways as a sum of consecutive naturals, for example, 57513 + ... + 57848.

It is an arithmetic number, because the mean of its divisors is an integer number (1730430).

Almost surely, 2^19380648 is an apocalyptic number.

It is an amenable number.

19380648 is an abundant number, since it is smaller than the sum of its proper divisors (35993112).

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

19380648 is a wasteful number, since it uses less digits than its factorization.

19380648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115377 (or 115373 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 19380648 is about 4402.3457383536. The cubic root of 19380648 is about 268.6103635161.

The spelling of 19380648 in words is "nineteen million, three hundred eighty thousand, six hundred forty-eight".