285430148 has 12 divisors (see below), whose sum is σ = 502039692. Its totient is φ = 141990240.

The previous prime is 285430147. The next prime is 285430157. The reversal of 285430148 is 841034582.

It can be written as a sum of positive squares in 2 ways, for example, as 166358404 + 119071744 = 12898^2 + 10912^2 .

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (285430147) 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, 180323 + ... + 181898.

It is an arithmetic number, because the mean of its divisors is an integer number (41836641).

Almost surely, 2^285430148 is an apocalyptic number.

It is an amenable number.

285430148 is a deficient number, since it is larger than the sum of its proper divisors (216609544).

285430148 is a wasteful number, since it uses less digits than its factorization.

285430148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362422 (or 362420 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 35.

The square root of 285430148 is about 16894.6780969630. The cubic root of 285430148 is about 658.4153504539.

The spelling of 285430148 in words is "two hundred eighty-five million, four hundred thirty thousand, one hundred forty-eight".