542771444 has 36 divisors (see below), whose sum is σ = 1023504804. Its totient is φ = 250983168.

The previous prime is 542771441. The next prime is 542771459. The reversal of 542771444 is 444177245.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 292752100 + 250019344 = 17110^2 + 15812^2 .

It is a junction number, because it is equal to n+sod(n) for n = 542771398 and 542771407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542771441) 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 11 ways as a sum of consecutive naturals, for example, 235562 + ... + 237854.

It is an arithmetic number, because the mean of its divisors is an integer number (28430689).

Almost surely, 2^542771444 is an apocalyptic number.

It is an amenable number.

542771444 is a deficient number, since it is larger than the sum of its proper divisors (480733360).

542771444 is a wasteful number, since it uses less digits than its factorization.

542771444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2432 (or 2371 counting only the distinct ones).

The product of its digits is 125440, while the sum is 38.

The square root of 542771444 is about 23297.4557409173. The cubic root of 542771444 is about 815.7160300018.

The spelling of 542771444 in words is "five hundred forty-two million, seven hundred seventy-one thousand, four hundred forty-four".