19432868 has 48 divisors (see below), whose sum is σ = 42223104. Its totient is φ = 7620480.

The previous prime is 19432867. The next prime is 19432879. The reversal of 19432868 is 86823491.

It is not an unprimeable number, because it can be changed into a prime (19432867) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71573 + ... + 71843.

It is an arithmetic number, because the mean of its divisors is an integer number (879648).

Almost surely, 2^19432868 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 19432868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21111552).

19432868 is an abundant number, since it is smaller than the sum of its proper divisors (22790236).

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

19432868 is a wasteful number, since it uses less digits than its factorization.

19432868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492 (or 490 counting only the distinct ones).

The product of its digits is 82944, while the sum is 41.

The square root of 19432868 is about 4408.2726775915. The cubic root of 19432868 is about 268.8513986946.

The spelling of 19432868 in words is "nineteen million, four hundred thirty-two thousand, eight hundred sixty-eight".