43282240 has 28 divisors (see below), whose sum is σ = 103066596. Its totient is φ = 17312768.

The previous prime is 43282207. The next prime is 43282241. The reversal of 43282240 is 4228234.

It can be written as a sum of positive squares in 2 ways, for example, as 21678336 + 21603904 = 4656^2 + 4648^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43282241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67309 + ... + 67948.

Almost surely, 2^43282240 is an apocalyptic number.

43282240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

43282240 is an abundant number, since it is smaller than the sum of its proper divisors (59784356).

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

43282240 is a wasteful number, since it uses less digits than its factorization.

43282240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135274 (or 135264 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 43282240 is about 6578.9239241688. The cubic root of 43282240 is about 351.1046459787.

The spelling of 43282240 in words is "forty-three million, two hundred eighty-two thousand, two hundred forty".