285000274 has 16 divisors (see below), whose sum is σ = 487467288. Its totient is φ = 123800832.

The previous prime is 285000253. The next prime is 285000277. The reversal of 285000274 is 472000582.

It can be written as a sum of positive squares in 4 ways, for example, as 138227049 + 146773225 = 11757^2 + 12115^2 .

It is not an unprimeable number, because it can be changed into a prime (285000277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 321957 + ... + 322840.

Almost surely, 2^285000274 is an apocalyptic number.

285000274 is a deficient number, since it is larger than the sum of its proper divisors (202467014).

285000274 is a wasteful number, since it uses less digits than its factorization.

285000274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644829.

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 285000274 is about 16881.9511313118. The cubic root of 285000274 is about 658.0846474190.

The spelling of 285000274 in words is "two hundred eighty-five million, two hundred seventy-four", and thus it is an aban number.