285249266 has 16 divisors (see below), whose sum is σ = 446909184. Its totient is φ = 136291584.

The previous prime is 285249257. The next prime is 285249277. The reversal of 285249266 is 662942582.

It is an unprimeable number.

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, 58706 + ... + 63378.

It is an arithmetic number, because the mean of its divisors is an integer number (27931824).

Almost surely, 2^285249266 is an apocalyptic number.

285249266 is a deficient number, since it is larger than the sum of its proper divisors (161659918).

285249266 is a wasteful number, since it uses less digits than its factorization.

285249266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6025.

The product of its digits is 414720, while the sum is 44.

The square root of 285249266 is about 16889.3240243652. The cubic root of 285249266 is about 658.2762380152.

The spelling of 285249266 in words is "two hundred eighty-five million, two hundred forty-nine thousand, two hundred sixty-six".