19378968 has 96 divisors (see below), whose sum is σ = 58106880. Its totient is φ = 5270400.

The previous prime is 19378967. The next prime is 19378969. The reversal of 19378968 is 86987391.

It is an interprime number because it is at equal distance from previous prime (19378967) and next prime (19378969).

It is a self number, because there is not a number n which added to its sum of digits gives 19378968.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19378967) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 317658 + ... + 317718.

It is an arithmetic number, because the mean of its divisors is an integer number (605280).

Almost surely, 2^19378968 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 19378968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29053440).

19378968 is an abundant number, since it is smaller than the sum of its proper divisors (38727912).

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

19378968 is a wasteful number, since it uses less digits than its factorization.

19378968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169 (or 104 counting only the distinct ones).

The product of its digits is 653184, while the sum is 51.

The square root of 19378968 is about 4402.1549268512. The cubic root of 19378968 is about 268.6026018484.

The spelling of 19378968 in words is "nineteen million, three hundred seventy-eight thousand, nine hundred sixty-eight".