286055728 has 60 divisors (see below), whose sum is σ = 647315712. Its totient is φ = 122102400.

The previous prime is 286055717. The next prime is 286055741. The reversal of 286055728 is 827550682.

286055728 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 247953 + ... + 249103.

Almost surely, 2^286055728 is an apocalyptic number.

286055728 is a gapful number since it is divisible by the number (28) 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 286055728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (323657856).

286055728 is an abundant number, since it is smaller than the sum of its proper divisors (361259984).

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

286055728 is a wasteful number, since it uses less digits than its factorization.

286055728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1490 (or 1477 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 43.

The square root of 286055728 is about 16913.1820778942. The cubic root of 286055728 is about 658.8960178819.

The spelling of 286055728 in words is "two hundred eighty-six million, fifty-five thousand, seven hundred twenty-eight".