19189696 has 56 divisors (see below), whose sum is σ = 41127680. Its totient is φ = 8854272.

The previous prime is 19189693. The next prime is 19189699. The reversal of 19189696 is 69698191.

It is an interprime number because it is at equal distance from previous prime (19189693) and next prime (19189699).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19189693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52105 + ... + 52471.

Almost surely, 2^19189696 is an apocalyptic number.

19189696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19189696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20563840).

19189696 is an abundant number, since it is smaller than the sum of its proper divisors (21937984).

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

19189696 is a wasteful number, since it uses less digits than its factorization.

19189696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441 (or 431 counting only the distinct ones).

The product of its digits is 209952, while the sum is 49.

The square root of 19189696 is about 4380.6045244920. The cubic root of 19189696 is about 267.7252698146.

The spelling of 19189696 in words is "nineteen million, one hundred eighty-nine thousand, six hundred ninety-six".