19648896 has 32 divisors (see below), whose sum is σ = 52193400. Its totient is φ = 6549504.

The previous prime is 19648883. The next prime is 19648903. The reversal of 19648896 is 69884691.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×19648896² = 772158228037632, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25201 + ... + 25968.

Almost surely, 2^19648896 is an apocalyptic number.

19648896 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

19648896 is an abundant number, since it is smaller than the sum of its proper divisors (32544504).

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

19648896 is an equidigital number, since it uses as much as digits as its factorization.

19648896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51186 (or 51174 counting only the distinct ones).

The product of its digits is 746496, while the sum is 51.

The square root of 19648896 is about 4432.7075247528. The cubic root of 19648896 is about 269.8439702063.

The spelling of 19648896 in words is "nineteen million, six hundred forty-eight thousand, eight hundred ninety-six".