285187034 has 16 divisors (see below), whose sum is σ = 471293856. Its totient is φ = 128346000.

The previous prime is 285187013. The next prime is 285187079. The reversal of 285187034 is 430781582.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61952 + ... + 66395.

It is an arithmetic number, because the mean of its divisors is an integer number (29455866).

Almost surely, 2^285187034 is an apocalyptic number.

285187034 is a deficient number, since it is larger than the sum of its proper divisors (186106822).

285187034 is a wasteful number, since it uses less digits than its factorization.

285187034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128461.

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 285187034 is about 16887.4815765999. The cubic root of 285187034 is about 658.2283631315.

The spelling of 285187034 in words is "two hundred eighty-five million, one hundred eighty-seven thousand, thirty-four".