282318138 has 12 divisors (see below), whose sum is σ = 611689338. Its totient is φ = 94106040.

The previous prime is 282318137. The next prime is 282318163. The reversal of 282318138 is 831813282.

It can be written as a sum of positive squares in only one way, i.e., 282139209 + 178929 = 16797^2 + 423^2 .

It is not an unprimeable number, because it can be changed into a prime (282318137) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7842153 + ... + 7842188.

Almost surely, 2^282318138 is an apocalyptic number.

282318138 is an abundant number, since it is smaller than the sum of its proper divisors (329371200).

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

282318138 is a wasteful number, since it uses less digits than its factorization.

282318138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15684349 (or 15684346 counting only the distinct ones).

The product of its digits is 18432, while the sum is 36.

The square root of 282318138 is about 16802.3253747807. The cubic root of 282318138 is about 656.0137269708.

The spelling of 282318138 in words is "two hundred eighty-two million, three hundred eighteen thousand, one hundred thirty-eight".