542338561 has 8 divisors (see below), whose sum is σ = 553852800. Its totient is φ = 530901840.

The previous prime is 542338549. The next prime is 542338567. The reversal of 542338561 is 165833245.

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 542338561 - 2¹⁷ = 542207489 is a prime.

It is a super-2 number, since 2×542338561² = 588262229495101442, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 542338561.

It is not an unprimeable number, because it can be changed into a prime (542338567) 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, 5130 + ... + 33331.

It is an arithmetic number, because the mean of its divisors is an integer number (69231600).

Almost surely, 2^542338561 is an apocalyptic number.

It is an amenable number.

542338561 is a deficient number, since it is larger than the sum of its proper divisors (11514239).

542338561 is a wasteful number, since it uses less digits than its factorization.

542338561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38759.

The product of its digits is 86400, while the sum is 37.

The square root of 542338561 is about 23288.1635385876. The cubic root of 542338561 is about 815.4991164059.

The spelling of 542338561 in words is "five hundred forty-two million, three hundred thirty-eight thousand, five hundred sixty-one".