543220641 has 32 divisors (see below), whose sum is σ = 818872320. Its totient is φ = 355851792.

The previous prime is 543220637. The next prime is 543220651. The reversal of 543220641 is 146022345.

It is not a de Polignac number, because 543220641 - 2² = 543220637 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (543220631) 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 31 ways as a sum of consecutive naturals, for example, 499200 + ... + 500286.

It is an arithmetic number, because the mean of its divisors is an integer number (25589760).

Almost surely, 2^543220641 is an apocalyptic number.

It is an amenable number.

543220641 is a deficient number, since it is larger than the sum of its proper divisors (275651679).

543220641 is a wasteful number, since it uses less digits than its factorization.

543220641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1402 (or 1396 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 543220641 is about 23307.0942204300. The cubic root of 543220641 is about 815.9409964906.

Adding to 543220641 its reverse (146022345), we get a palindrome (689242986).

The spelling of 543220641 in words is "five hundred forty-three million, two hundred twenty thousand, six hundred forty-one".