282985540 has 24 divisors (see below), whose sum is σ = 594780480. Its totient is φ = 113096928.

The previous prime is 282985531. The next prime is 282985541. The reversal of 282985540 is 45589282.

It is not an unprimeable number, because it can be changed into a prime (282985541) 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, 20631 + ... + 31489.

It is an arithmetic number, because the mean of its divisors is an integer number (24782520).

Almost surely, 2^282985540 is an apocalyptic number.

282985540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

282985540 is an abundant number, since it is smaller than the sum of its proper divisors (311794940).

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

282985540 is a wasteful number, since it uses less digits than its factorization.

282985540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12171 (or 12169 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 43.

The square root of 282985540 is about 16822.1740568810. The cubic root of 282985540 is about 656.5302604602.

The spelling of 282985540 in words is "two hundred eighty-two million, nine hundred eighty-five thousand, five hundred forty".