285842852 has 6 divisors (see below), whose sum is σ = 500224998. Its totient is φ = 142921424.

The previous prime is 285842839. The next prime is 285842911. The reversal of 285842852 is 258248582.

It can be written as a sum of positive squares in only one way, i.e., 264257536 + 21585316 = 16256^2 + 4646^2 .

It is a super-2 number, since 2×285842852² = 163412272078987808, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35730353 + ... + 35730360.

It is an arithmetic number, because the mean of its divisors is an integer number (83370833).

Almost surely, 2^285842852 is an apocalyptic number.

It is an amenable number.

285842852 is a deficient number, since it is larger than the sum of its proper divisors (214382146).

285842852 is a wasteful number, since it uses less digits than its factorization.

285842852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71460717 (or 71460715 counting only the distinct ones).

The product of its digits is 409600, while the sum is 44.

The square root of 285842852 is about 16906.8877088600. The cubic root of 285842852 is about 658.7325323056.

The spelling of 285842852 in words is "two hundred eighty-five million, eight hundred forty-two thousand, eight hundred fifty-two".