543920 has 40 divisors (see below), whose sum is σ = 1364496. Its totient is φ = 200448.

The previous prime is 543911. The next prime is 543929. The reversal of 543920 is 29345.

It is an interprime number because it is at equal distance from previous prime (543911) and next prime (543929).

It is a tau number, because it is divible by the number of its divisors (40).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 543920.

It is not an unprimeable number, because it can be changed into a prime (543929) by changing a digit.

543920 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 779 + ... + 1301.

2⁵⁴³⁹²⁰ 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 543920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (682248).

543920 is an abundant number, since it is smaller than the sum of its proper divisors (820576).

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

543920 is a wasteful number, since it uses less digits than its factorization.

543920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549 (or 543 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 543920 is about 737.5093219750. The cubic root of 543920 is about 81.6291002195.

The spelling of 543920 in words is "five hundred forty-three thousand, nine hundred twenty".