303428286 has 72 divisors (see below), whose sum is σ = 779312664. Its totient is φ = 85044960.

The previous prime is 303428269. The next prime is 303428297. The reversal of 303428286 is 682824303.

303428286 is a `hidden beast` number, since 30 + 342 + 8 + 286 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 303428286.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 43501 + ... + 49991.

It is an arithmetic number, because the mean of its divisors is an integer number (10823787).

Almost surely, 2^303428286 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 303428286, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (389656332).

303428286 is an abundant number, since it is smaller than the sum of its proper divisors (475884378).

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

303428286 is a wasteful number, since it uses less digits than its factorization.

303428286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6566 (or 6556 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

The square root of 303428286 is about 17419.1930352700. The cubic root of 303428286 is about 671.9733062313.

The spelling of 303428286 in words is "three hundred three million, four hundred twenty-eight thousand, two hundred eighty-six".