428555439000 has 1152 divisors, whose sum is σ = 1656697536000. Its totient is φ = 99740160000.

The previous prime is 428555438989. The next prime is 428555439043. The reversal of 428555439000 is 934555824.

428555439000 is a `hidden beast` number, since 4 + 2 + 8 + 5 + 554 + 3 + 90 + 0 + 0 = 666.

428555439000 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a harmonic number, since the harmonic mean of its divisors is an integer.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 2876210926 + ... + 2876211074.

It is an arithmetic number, because the mean of its divisors is an integer number (1438105500).

Almost surely, 2^428555439000 is an apocalyptic number.

428555439000 is a gapful number since it is divisible by the number (40) 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 428555439000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (828348768000).

428555439000 is an abundant number, since it is smaller than the sum of its proper divisors (1228142097000).

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

428555439000 is a wasteful number, since it uses less digits than its factorization.

428555439000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294 (or 264 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 45.

The spelling of 428555439000 in words is "four hundred twenty-eight billion, five hundred fifty-five million, four hundred thirty-nine thousand".