543251240 has 48 divisors (see below), whose sum is σ = 1421882100. Its totient is φ = 186256896.

The previous prime is 543251231. The next prime is 543251273. The reversal of 543251240 is 42152345.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 540748516 + 2502724 = 23254^2 + 1582^2 .

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 11 ways as a sum of consecutive naturals, for example, 136625 + ... + 140544.

Almost surely, 2^543251240 is an apocalyptic number.

It is an amenable number.

543251240 is an abundant number, since it is smaller than the sum of its proper divisors (878630860).

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

543251240 is a wasteful number, since it uses less digits than its factorization.

543251240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277194 (or 277183 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 543251240 is about 23307.7506422220. The cubic root of 543251240 is about 815.9563165453.

The spelling of 543251240 in words is "five hundred forty-three million, two hundred fifty-one thousand, two hundred forty".