285826128 has 40 divisors (see below), whose sum is σ = 843868608. Its totient is φ = 81664512.

The previous prime is 285826103. The next prime is 285826141. The reversal of 285826128 is 821628582.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 285826128.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 425001 + ... + 425672.

Almost surely, 2^285826128 is an apocalyptic number.

285826128 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

285826128 is an abundant number, since it is smaller than the sum of its proper divisors (558042480).

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

285826128 is a wasteful number, since it uses less digits than its factorization.

285826128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 850691 (or 850685 counting only the distinct ones).

The product of its digits is 122880, while the sum is 42.

The square root of 285826128 is about 16906.3931103000. The cubic root of 285826128 is about 658.7196850859.

The spelling of 285826128 in words is "two hundred eighty-five million, eight hundred twenty-six thousand, one hundred twenty-eight".