543906432 has 96 divisors (see below), whose sum is σ = 1657274580. Its totient is φ = 170631168.

The previous prime is 543906431. The next prime is 543906443. The reversal of 543906432 is 234609345.

543906432 is a `hidden beast` number, since 5 + 4 + 3 + 9 + 0 + 643 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 518746176 + 25160256 = 22776^2 + 5016^2 .

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (543906431) 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 11 ways as a sum of consecutive naturals, for example, 5698 + ... + 33470.

Almost surely, 2^543906432 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 543906432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (828637290).

543906432 is an abundant number, since it is smaller than the sum of its proper divisors (1113368148).

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

543906432 is a wasteful number, since it uses less digits than its factorization.

543906432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27810 (or 27795 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

The square root of 543906432 is about 23321.8016456705. The cubic root of 543906432 is about 816.2842147213.

The spelling of 543906432 in words is "five hundred forty-three million, nine hundred six thousand, four hundred thirty-two".