543985632 has 108 divisors (see below), whose sum is σ = 1606995936. Its totient is φ = 181258560.

The previous prime is 543985621. The next prime is 543985639. The reversal of 543985632 is 236589345.

543985632 is a `hidden beast` number, since 5 + 4 + 3 + 9 + 8 + 5 + 632 = 666.

It is a tau number, because it is divible by the number of its divisors (108).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (543985639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 208657 + ... + 211247.

It is an arithmetic number, because the mean of its divisors is an integer number (14879592).

Almost surely, 2^543985632 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 543985632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (803497968).

543985632 is an abundant number, since it is smaller than the sum of its proper divisors (1063010304).

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

543985632 is an frugal number, since it uses more digits than its factorization.

543985632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2625 (or 2596 counting only the distinct ones).

The product of its digits is 777600, while the sum is 45.

The square root of 543985632 is about 23323.4995658885. The cubic root of 543985632 is about 816.3238334059.

The spelling of 543985632 in words is "five hundred forty-three million, nine hundred eighty-five thousand, six hundred thirty-two".