543440001 has 8 divisors (see below), whose sum is σ = 780324160. Its totient is φ = 334424592.

The previous prime is 543439999. The next prime is 543440039. The reversal of 543440001 is 100044345.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 543440001 - 2¹ = 543439999 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 543440001.

It is not an unprimeable number, because it can be changed into a prime (543440081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6967141 + ... + 6967218.

It is an arithmetic number, because the mean of its divisors is an integer number (97540520).

Almost surely, 2^543440001 is an apocalyptic number.

It is an amenable number.

543440001 is a deficient number, since it is larger than the sum of its proper divisors (236884159).

543440001 is a wasteful number, since it uses less digits than its factorization.

543440001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13934375.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 543440001 is about 23311.7996087818. The cubic root of 543440001 is about 816.0508111262.

Adding to 543440001 its reverse (100044345), we get a palindrome (643484346).

The spelling of 543440001 in words is "five hundred forty-three million, four hundred forty thousand, one".