542281728 has 52 divisors (see below), whose sum is σ = 1445940848. Its totient is φ = 180756480.

The previous prime is 542281721. The next prime is 542281781. The reversal of 542281728 is 827182245.

It is not an unprimeable number, because it can be changed into a prime (542281721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9778 + ... + 34353.

Almost surely, 2^542281728 is an apocalyptic number.

It is an amenable number.

542281728 is an abundant number, since it is smaller than the sum of its proper divisors (903659120).

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

542281728 is an equidigital number, since it uses as much as digits as its factorization.

542281728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44158 (or 44136 counting only the distinct ones).

The product of its digits is 71680, while the sum is 39.

The square root of 542281728 is about 23286.9432944730. The cubic root of 542281728 is about 815.4706293539.

The spelling of 542281728 in words is "five hundred forty-two million, two hundred eighty-one thousand, seven hundred twenty-eight".