285251030 has 16 divisors (see below), whose sum is σ = 516529440. Its totient is φ = 113416512.

The previous prime is 285251011. The next prime is 285251033. The reversal of 285251030 is 30152582.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285251033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83735 + ... + 87074.

It is an arithmetic number, because the mean of its divisors is an integer number (32283090).

Almost surely, 2^285251030 is an apocalyptic number.

285251030 is a deficient number, since it is larger than the sum of its proper divisors (231278410).

285251030 is a wasteful number, since it uses less digits than its factorization.

285251030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170983.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 285251030 is about 16889.3762466232. The cubic root of 285251030 is about 658.2775949534.

The spelling of 285251030 in words is "two hundred eighty-five million, two hundred fifty-one thousand, thirty".