542644361 has 4 divisors (see below), whose sum is σ = 620164992. Its totient is φ = 465123732.

The previous prime is 542644357. The next prime is 542644381. The reversal of 542644361 is 163446245.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 542644361 - 2² = 542644357 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (542644381) 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, 38760305 + ... + 38760318.

It is an arithmetic number, because the mean of its divisors is an integer number (155041248).

Almost surely, 2^542644361 is an apocalyptic number.

It is an amenable number.

542644361 is a deficient number, since it is larger than the sum of its proper divisors (77520631).

542644361 is an equidigital number, since it uses as much as digits as its factorization.

542644361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77520630.

The product of its digits is 69120, while the sum is 35.

The square root of 542644361 is about 23294.7281804274. The cubic root of 542644361 is about 815.6523618699.

The spelling of 542644361 in words is "five hundred forty-two million, six hundred forty-four thousand, three hundred sixty-one".