285051128 has 16 divisors (see below), whose sum is σ = 546901080. Its totient is φ = 139210848.

The previous prime is 285051127. The next prime is 285051139. The reversal of 285051128 is 821150582.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 285051094 and 285051103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285051127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 413975 + ... + 414662.

Almost surely, 2^285051128 is an apocalyptic number.

It is an amenable number.

285051128 is a deficient number, since it is larger than the sum of its proper divisors (261849952).

285051128 is a wasteful number, since it uses less digits than its factorization.

285051128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 828686 (or 828682 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 32.

The square root of 285051128 is about 16883.4572288972. The cubic root of 285051128 is about 658.1237868507.

The spelling of 285051128 in words is "two hundred eighty-five million, fifty-one thousand, one hundred twenty-eight".