543045640 has 32 divisors (see below), whose sum is σ = 1274978880. Its totient is φ = 207773632.

The previous prime is 543045623. The next prime is 543045649. The reversal of 543045640 is 46540345.

It is not an unprimeable number, because it can be changed into a prime (543045649) 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, 294214 + ... + 296053.

It is an arithmetic number, because the mean of its divisors is an integer number (39843090).

Almost surely, 2^543045640 is an apocalyptic number.

It is an amenable number.

543045640 is an abundant number, since it is smaller than the sum of its proper divisors (731933240).

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

543045640 is a wasteful number, since it uses less digits than its factorization.

543045640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590301 (or 590297 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 31.

The square root of 543045640 is about 23303.3396748191. The cubic root of 543045640 is about 815.8533673789.

Adding to 543045640 its reverse (46540345), we get a palindrome (589585985).

The spelling of 543045640 in words is "five hundred forty-three million, forty-five thousand, six hundred forty".