727544042 has 4 divisors (see below), whose sum is σ = 1091316066. Its totient is φ = 363772020.

The previous prime is 727544033. The next prime is 727544063. The reversal of 727544042 is 240445727.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 523082641 + 204461401 = 22871^2 + 14299^2 .

It is a junction number, because it is equal to n+sod(n) for n = 727543993 and 727544011.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 181886009 + ... + 181886012.

Almost surely, 2^727544042 is an apocalyptic number.

727544042 is a deficient number, since it is larger than the sum of its proper divisors (363772024).

727544042 is a wasteful number, since it uses less digits than its factorization.

727544042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363772023.

The product of its (nonzero) digits is 62720, while the sum is 35.

The square root of 727544042 is about 26973.0243391430. The cubic root of 727544042 is about 899.4004410057.

Adding to 727544042 its reverse (240445727), we get a palindrome (967989769).

The spelling of 727544042 in words is "seven hundred twenty-seven million, five hundred forty-four thousand, forty-two".