285982656 has 56 divisors (see below), whose sum is σ = 758153424. Its totient is φ = 95139840.

The previous prime is 285982649. The next prime is 285982663. The reversal of 285982656 is 656289582.

It is an interprime number because it is at equal distance from previous prime (285982649) and next prime (285982663).

It is a junction number, because it is equal to n+sod(n) for n = 285982599 and 285982608.

It is a congruent number.

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, 124236 + ... + 126516.

It is an arithmetic number, because the mean of its divisors is an integer number (13538454).

Almost surely, 2^285982656 is an apocalyptic number.

It is an amenable number.

285982656 is an abundant number, since it is smaller than the sum of its proper divisors (472170768).

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

285982656 is a wasteful number, since it uses less digits than its factorization.

285982656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2949 (or 2939 counting only the distinct ones).

The product of its digits is 2073600, while the sum is 51.

The square root of 285982656 is about 16911.0217314035. The cubic root of 285982656 is about 658.8399088265.

The spelling of 285982656 in words is "two hundred eighty-five million, nine hundred eighty-two thousand, six hundred fifty-six".