542221043 has 8 divisors (see below), whose sum is σ = 667349088. Its totient is φ = 429009984.

The previous prime is 542220971. The next prime is 542221049. The reversal of 542221043 is 340122245.

It is a happy number.

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

It is not a de Polignac number, because 542221043 - 2⁸ = 542220787 is a prime.

It is not an unprimeable number, because it can be changed into a prime (542221049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2979146 + ... + 2979327.

It is an arithmetic number, because the mean of its divisors is an integer number (83418636).

Almost surely, 2^542221043 is an apocalyptic number.

542221043 is a deficient number, since it is larger than the sum of its proper divisors (125128045).

542221043 is a wasteful number, since it uses less digits than its factorization.

542221043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5958493.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 542221043 is about 23285.6402746414. The cubic root of 542221043 is about 815.4402093227.

Adding to 542221043 its reverse (340122245), we get a palindrome (882343288).

The spelling of 542221043 in words is "five hundred forty-two million, two hundred twenty-one thousand, forty-three".