1428532056 has 96 divisors (see below), whose sum is σ = 4438387200. Its totient is φ = 406607040.

The previous prime is 1428532033. The next prime is 1428532067. The reversal of 1428532056 is 6502358241.

1428532056 is a `hidden beast` number, since 1 + 4 + 285 + 320 + 56 = 666.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1428532056.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 131355 + ... + 141813.

It is an arithmetic number, because the mean of its divisors is an integer number (46233200).

Almost surely, 2^1428532056 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 1428532056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2219193600).

1428532056 is an abundant number, since it is smaller than the sum of its proper divisors (3009855144).

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

1428532056 is a wasteful number, since it uses less digits than its factorization.

1428532056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10749 (or 10742 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The square root of 1428532056 is about 37795.9264471715. The cubic root of 1428532056 is about 1126.2375335844.

The spelling of 1428532056 in words is "one billion, four hundred twenty-eight million, five hundred thirty-two thousand, fifty-six".