542481860 has 24 divisors (see below), whose sum is σ = 1140129816. Its totient is φ = 216817920.

The previous prime is 542481847. The next prime is 542481869. The reversal of 542481860 is 68184245.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 210076036 + 332405824 = 14494^2 + 18232^2 .

It is not an unprimeable number, because it can be changed into a prime (542481869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16154 + ... + 36686.

It is an arithmetic number, because the mean of its divisors is an integer number (47505409).

Almost surely, 2^542481860 is an apocalyptic number.

It is an amenable number.

542481860 is an abundant number, since it is smaller than the sum of its proper divisors (597647956).

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

542481860 is a wasteful number, since it uses less digits than its factorization.

542481860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21863 (or 21861 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 38.

The square root of 542481860 is about 23291.2399841657. The cubic root of 542481860 is about 815.5709349619.

The spelling of 542481860 in words is "five hundred forty-two million, four hundred eighty-one thousand, eight hundred sixty".