204328578432 has 128 divisors (see below), whose sum is σ = 597952005120. Its totient is φ = 61304576000.

The previous prime is 204328578427. The next prime is 204328578439. The reversal of 204328578432 is 234875823402.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204328578439) 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, 187153 + ... + 666095.

It is an arithmetic number, because the mean of its divisors is an integer number (4671500040).

Almost surely, 2^204328578432 is an apocalyptic number.

204328578432 is a gapful number since it is divisible by the number (22) 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 204328578432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (298976002560).

204328578432 is an abundant number, since it is smaller than the sum of its proper divisors (393623426688).

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

204328578432 is a wasteful number, since it uses less digits than its factorization.

204328578432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479072 (or 479060 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 48.

The spelling of 204328578432 in words is "two hundred four billion, three hundred twenty-eight million, five hundred seventy-eight thousand, four hundred thirty-two".