19895648 has 12 divisors (see below), whose sum is σ = 39169620. Its totient is φ = 9947808.

The previous prime is 19895633. The next prime is 19895651. The reversal of 19895648 is 84659891.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 19895596 and 19895605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310838 + ... + 310901.

It is an arithmetic number, because the mean of its divisors is an integer number (3264135).

Almost surely, 2^19895648 is an apocalyptic number.

It is an amenable number.

19895648 is a deficient number, since it is larger than the sum of its proper divisors (19273972).

19895648 is an equidigital number, since it uses as much as digits as its factorization.

19895648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621749 (or 621741 counting only the distinct ones).

The product of its digits is 622080, while the sum is 50.

The square root of 19895648 is about 4460.4537885735. The cubic root of 19895648 is about 270.9688466978.

The spelling of 19895648 in words is "nineteen million, eight hundred ninety-five thousand, six hundred forty-eight".