19413328 has 40 divisors (see below), whose sum is σ = 41622336. Its totient is φ = 8697600.

The previous prime is 19413323. The next prime is 19413341. The reversal of 19413328 is 82331491.

It is a self number, because there is not a number n which added to its sum of digits gives 19413328.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19413323) 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, 12093 + ... + 13603.

Almost surely, 2^19413328 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 19413328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20811168).

19413328 is an abundant number, since it is smaller than the sum of its proper divisors (22209008).

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

19413328 is a wasteful number, since it uses less digits than its factorization.

19413328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1603 (or 1597 counting only the distinct ones).

The product of its digits is 5184, while the sum is 31.

The square root of 19413328 is about 4406.0558326013. The cubic root of 19413328 is about 268.7612572894.

The spelling of 19413328 in words is "nineteen million, four hundred thirteen thousand, three hundred twenty-eight".