285384018 has 32 divisors (see below), whose sum is σ = 582595200. Its totient is φ = 93177216.

The previous prime is 285384017. The next prime is 285384059. The reversal of 285384018 is 810483582.

It is not an unprimeable number, because it can be changed into a prime (285384013) 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 in 15 ways as a sum of consecutive naturals, for example, 55755 + ... + 60657.

It is an arithmetic number, because the mean of its divisors is an integer number (18206100).

Almost surely, 2^285384018 is an apocalyptic number.

285384018 is an abundant number, since it is smaller than the sum of its proper divisors (297211182).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

285384018 is a wasteful number, since it uses less digits than its factorization.

285384018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5106.

The product of its (nonzero) digits is 61440, while the sum is 39.

The square root of 285384018 is about 16893.3128189825. The cubic root of 285384018 is about 658.3798784517.

The spelling of 285384018 in words is "two hundred eighty-five million, three hundred eighty-four thousand, eighteen".