19430604032 has 72 divisors (see below), whose sum is σ = 44375861376. Its totient is φ = 8318048256.

The previous prime is 19430604031. The next prime is 19430604043. The reversal of 19430604032 is 23040603491.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 19430604032.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19430604031) 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, 1727258 + ... + 1738470.

It is an arithmetic number, because the mean of its divisors is an integer number (616331408).

Almost surely, 2^19430604032 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 19430604032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22187930688).

19430604032 is an abundant number, since it is smaller than the sum of its proper divisors (24945257344).

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

19430604032 is an equidigital number, since it uses as much as digits as its factorization.

19430604032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12203 (or 12189 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 32.

The spelling of 19430604032 in words is "nineteen billion, four hundred thirty million, six hundred four thousand, thirty-two".