285882940 has 24 divisors (see below), whose sum is σ = 686119392. Its totient is φ = 98016960.

The previous prime is 285882859. The next prime is 285882943. The reversal of 285882940 is 49288582.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285882943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1020871 + ... + 1021150.

It is an arithmetic number, because the mean of its divisors is an integer number (28588308).

Almost surely, 2^285882940 is an apocalyptic number.

285882940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

285882940 is an abundant number, since it is smaller than the sum of its proper divisors (400236452).

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

285882940 is a wasteful number, since it uses less digits than its factorization.

285882940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2042037 (or 2042035 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 46.

The square root of 285882940 is about 16908.0732196191. The cubic root of 285882940 is about 658.7633254904.

The spelling of 285882940 in words is "two hundred eighty-five million, eight hundred eighty-two thousand, nine hundred forty".