543221360 has 80 divisors (see below), whose sum is σ = 1437765120. Its totient is φ = 188939520.

The previous prime is 543221353. The next prime is 543221377. The reversal of 543221360 is 63122345.

It is a tau number, because it is divible by the number of its divisors (80).

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 15 ways as a sum of consecutive naturals, for example, 6821 + ... + 33659.

It is an arithmetic number, because the mean of its divisors is an integer number (17972064).

Almost surely, 2^543221360 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 543221360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (718882560).

543221360 is an abundant number, since it is smaller than the sum of its proper divisors (894543760).

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

543221360 is a wasteful number, since it uses less digits than its factorization.

543221360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26886 (or 26880 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 543221360 is about 23307.1096449131. The cubic root of 543221360 is about 815.9413564802.

The spelling of 543221360 in words is "five hundred forty-three million, two hundred twenty-one thousand, three hundred sixty".