19448016 has 40 divisors (see below), whose sum is σ = 57418944. Its totient is φ = 5556480.

The previous prime is 19447991. The next prime is 19448021. The reversal of 19448016 is 61084491.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28605 + ... + 29276.

Almost surely, 2^19448016 is an apocalyptic number.

19448016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

19448016 is an abundant number, since it is smaller than the sum of its proper divisors (37970928).

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

19448016 is a wasteful number, since it uses less digits than its factorization.

19448016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57899 (or 57893 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 19448016 is about 4409.9904761802. The cubic root of 19448016 is about 268.9212374725.

The spelling of 19448016 in words is "nineteen million, four hundred forty-eight thousand, sixteen".