285342086 has 4 divisors (see below), whose sum is σ = 428013132. Its totient is φ = 142671042.

The previous prime is 285342067. The next prime is 285342097. The reversal of 285342086 is 680243582.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71335520 + ... + 71335523.

It is an arithmetic number, because the mean of its divisors is an integer number (107003283).

Almost surely, 2^285342086 is an apocalyptic number.

285342086 is a deficient number, since it is larger than the sum of its proper divisors (142671046).

285342086 is a wasteful number, since it uses less digits than its factorization.

285342086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142671045.

The product of its (nonzero) digits is 92160, while the sum is 38.

The square root of 285342086 is about 16892.0716905890. The cubic root of 285342086 is about 658.3476312158.

The spelling of 285342086 in words is "two hundred eighty-five million, three hundred forty-two thousand, eighty-six".