543242840 has 32 divisors (see below), whose sum is σ = 1396910880. Its totient is φ = 186254592.

The previous prime is 543242809. The next prime is 543242849. The reversal of 543242840 is 48242345.

It is a super-2 number, since 2×543242840² = 590225566422531200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 543242797 and 543242806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (543242849) 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 7 ways as a sum of consecutive naturals, for example, 969797 + ... + 970356.

It is an arithmetic number, because the mean of its divisors is an integer number (43653465).

Almost surely, 2^543242840 is an apocalyptic number.

It is an amenable number.

543242840 is an abundant number, since it is smaller than the sum of its proper divisors (853668040).

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

543242840 is a wasteful number, since it uses less digits than its factorization.

543242840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1940171 (or 1940167 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 32.

The square root of 543242840 is about 23307.5704439566. The cubic root of 543242840 is about 815.9521109599.

The spelling of 543242840 in words is "five hundred forty-three million, two hundred forty-two thousand, eight hundred forty".