19386648 has 32 divisors (see below), whose sum is σ = 53852400. Its totient is φ = 6462144.

The previous prime is 19386643. The next prime is 19386659. The reversal of 19386648 is 84668391.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19386641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44661 + ... + 45092.

Almost surely, 2^19386648 is an apocalyptic number.

19386648 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

19386648 is an abundant number, since it is smaller than the sum of its proper divisors (34465752).

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

19386648 is a wasteful number, since it uses less digits than its factorization.

19386648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89768 (or 89758 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 19386648 is about 4403.0271405023. The cubic root of 19386648 is about 268.6380800970.

The spelling of 19386648 in words is "nineteen million, three hundred eighty-six thousand, six hundred forty-eight".