543535640 has 16 divisors (see below), whose sum is σ = 1222955280. Its totient is φ = 217414240.

The previous prime is 543535631. The next prime is 543535687. The reversal of 543535640 is 46535345.

It is a self number, because there is not a number n which added to its sum of digits gives 543535640.

It is a congruent number.

It is an unprimeable number.

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, 6794156 + ... + 6794235.

It is an arithmetic number, because the mean of its divisors is an integer number (76434705).

Almost surely, 2^543535640 is an apocalyptic number.

It is an amenable number.

543535640 is an abundant number, since it is smaller than the sum of its proper divisors (679419640).

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

543535640 is a wasteful number, since it uses less digits than its factorization.

543535640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13588402 (or 13588398 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 35.

The square root of 543535640 is about 23313.8508187729. The cubic root of 543535640 is about 816.0986800755.

The spelling of 543535640 in words is "five hundred forty-three million, five hundred thirty-five thousand, six hundred forty".