19424216 has 32 divisors (see below), whose sum is σ = 42336000. Its totient is φ = 8182176.

The previous prime is 19424203. The next prime is 19424227. The reversal of 19424216 is 61242491.

It is a congruent number.

It is an unprimeable number.

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, 365 + ... + 6243.

It is an arithmetic number, because the mean of its divisors is an integer number (1323000).

Almost surely, 2^19424216 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 19424216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21168000).

19424216 is an abundant number, since it is smaller than the sum of its proper divisors (22911784).

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

19424216 is a wasteful number, since it uses less digits than its factorization.

19424216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5951 (or 5947 counting only the distinct ones).

The product of its digits is 3456, while the sum is 29.

The square root of 19424216 is about 4407.2912315843. The cubic root of 19424216 is about 268.8114929775.

The spelling of 19424216 in words is "nineteen million, four hundred twenty-four thousand, two hundred sixteen".