285676538 has 16 divisors (see below), whose sum is σ = 495633600. Its totient is φ = 120957216.

The previous prime is 285676499. The next prime is 285676607. The reversal of 285676538 is 835676582.

It is a super-2 number, since 2×285676538² = 163222168727330888, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121763 + ... + 124086.

It is an arithmetic number, because the mean of its divisors is an integer number (30977100).

Almost surely, 2^285676538 is an apocalyptic number.

285676538 is a deficient number, since it is larger than the sum of its proper divisors (209957062).

285676538 is a wasteful number, since it uses less digits than its factorization.

285676538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245941.

The product of its digits is 2419200, while the sum is 50.

The square root of 285676538 is about 16901.9684652410. The cubic root of 285676538 is about 658.6047491589.

The spelling of 285676538 in words is "two hundred eighty-five million, six hundred seventy-six thousand, five hundred thirty-eight".