542421447 has 8 divisors (see below), whose sum is σ = 731355120. Its totient is φ = 357551040.

The previous prime is 542421433. The next prime is 542421521. The reversal of 542421447 is 744124245.

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

It is not a de Polignac number, because 542421447 - 2¹¹ = 542419399 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542421427) 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, 1015504 + ... + 1016037.

It is an arithmetic number, because the mean of its divisors is an integer number (91419390).

Almost surely, 2^542421447 is an apocalyptic number.

542421447 is a deficient number, since it is larger than the sum of its proper divisors (188933673).

542421447 is a wasteful number, since it uses less digits than its factorization.

542421447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2031633.

The product of its digits is 35840, while the sum is 33.

The square root of 542421447 is about 23289.9430441553. The cubic root of 542421447 is about 815.5406587323.

The spelling of 542421447 in words is "five hundred forty-two million, four hundred twenty-one thousand, four hundred forty-seven".