542439680 has 36 divisors (see below), whose sum is σ = 1299315612. Its totient is φ = 216975360.

The previous prime is 542439679. The next prime is 542439707. The reversal of 542439680 is 86934245.

It can be written as a sum of positive squares in 2 ways, for example, as 249892864 + 292546816 = 15808^2 + 17104^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210611 + ... + 213170.

Almost surely, 2^542439680 is an apocalyptic number.

It is an amenable number.

542439680 is an abundant number, since it is smaller than the sum of its proper divisors (756875932).

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

542439680 is an equidigital number, since it uses as much as digits as its factorization.

542439680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423802 (or 423788 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 41.

The square root of 542439680 is about 23290.3344759151. The cubic root of 542439680 is about 815.5497965140.

The spelling of 542439680 in words is "five hundred forty-two million, four hundred thirty-nine thousand, six hundred eighty".