428605632000 has 2880 divisors, whose sum is σ = 2077498710144. Its totient is φ = 82811289600.

The previous prime is 428605631981. The next prime is 428605632041. The reversal of 428605632000 is 236506824.

428605632000 is a `hidden beast` number, since 4 + 28 + 605 + 6 + 3 + 20 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (2880).

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 11583935982 + ... + 11583936018.

Almost surely, 2^428605632000 is an apocalyptic number.

428605632000 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 428605632000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1038749355072).

428605632000 is an abundant number, since it is smaller than the sum of its proper divisors (1648893078144).

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

428605632000 is a wasteful number, since it uses less digits than its factorization.

428605632000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126 (or 84 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The spelling of 428605632000 in words is "four hundred twenty-eight billion, six hundred five million, six hundred thirty-two thousand".