285649348 has 6 divisors (see below), whose sum is σ = 499886366. Its totient is φ = 142824672.

The previous prime is 285649339. The next prime is 285649349. The reversal of 285649348 is 843946582.

It can be written as a sum of positive squares in only one way, i.e., 220879044 + 64770304 = 14862^2 + 8048^2 .

It is not an unprimeable number, because it can be changed into a prime (285649349) 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 as a sum of consecutive naturals, namely, 35706165 + ... + 35706172.

Almost surely, 2^285649348 is an apocalyptic number.

It is an amenable number.

285649348 is a deficient number, since it is larger than the sum of its proper divisors (214237018).

285649348 is a wasteful number, since it uses less digits than its factorization.

285649348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71412341 (or 71412339 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 49.

The square root of 285649348 is about 16901.1641019191. The cubic root of 285649348 is about 658.5838536951.

The spelling of 285649348 in words is "two hundred eighty-five million, six hundred forty-nine thousand, three hundred forty-eight".