19099968 has 56 divisors (see below), whose sum is σ = 52181760. Its totient is φ = 6159360.

The previous prime is 19099963. The next prime is 19099987. The reversal of 19099968 is 86999091.

It is a self number, because there is not a number n which added to its sum of digits gives 19099968.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19099963) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4348 + ... + 7556.

Almost surely, 2^19099968 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19099968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26090880).

19099968 is an abundant number, since it is smaller than the sum of its proper divisors (33081792).

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

19099968 is a wasteful number, since it uses less digits than its factorization.

19099968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3255 (or 3245 counting only the distinct ones).

The product of its (nonzero) digits is 314928, while the sum is 51.

The square root of 19099968 is about 4370.3510156508. The cubic root of 19099968 is about 267.3073373243.

The spelling of 19099968 in words is "nineteen million, ninety-nine thousand, nine hundred sixty-eight".