285980318 has 32 divisors (see below), whose sum is σ = 473104800. Its totient is φ = 128848896.

The previous prime is 285980311. The next prime is 285980323. The reversal of 285980318 is 813089582.

It is a super-2 number, since 2×285980318² = 163569484566762248, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285980311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 191318 + ... + 192806.

It is an arithmetic number, because the mean of its divisors is an integer number (14784525).

Almost surely, 2^285980318 is an apocalyptic number.

285980318 is a deficient number, since it is larger than the sum of its proper divisors (187124482).

285980318 is a wasteful number, since it uses less digits than its factorization.

285980318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1676.

The product of its (nonzero) digits is 138240, while the sum is 44.

The square root of 285980318 is about 16910.9526047470. The cubic root of 285980318 is about 658.8381134123.

The spelling of 285980318 in words is "two hundred eighty-five million, nine hundred eighty thousand, three hundred eighteen".