542467209 has 8 divisors (see below), whose sum is σ = 730049760. Its totient is φ = 358264736.

The previous prime is 542467207. The next prime is 542467217. The reversal of 542467209 is 902764245.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 542467209 - 2¹ = 542467207 is a prime.

It is not an unprimeable number, because it can be changed into a prime (542467207) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 844644 + ... + 845285.

It is an arithmetic number, because the mean of its divisors is an integer number (91256220).

Almost surely, 2^542467209 is an apocalyptic number.

It is an amenable number.

542467209 is a deficient number, since it is larger than the sum of its proper divisors (187582551).

542467209 is a wasteful number, since it uses less digits than its factorization.

542467209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1690039.

The product of its (nonzero) digits is 120960, while the sum is 39.

The square root of 542467209 is about 23290.9254646525. The cubic root of 542467209 is about 815.5635927580.

The spelling of 542467209 in words is "five hundred forty-two million, four hundred sixty-seven thousand, two hundred nine".