742729556 has 12 divisors (see below), whose sum is σ = 1344596820. Its totient is φ = 358559040.

The previous prime is 742729553. The next prime is 742729571. The reversal of 742729556 is 655927247.

It can be written as a sum of positive squares in 2 ways, for example, as 589712656 + 153016900 = 24284^2 + 12370^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 742729556.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742729553) 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 3 ways as a sum of consecutive naturals, for example, 3201305 + ... + 3201536.

It is an arithmetic number, because the mean of its divisors is an integer number (112049735).

Almost surely, 2^742729556 is an apocalyptic number.

It is an amenable number.

742729556 is a deficient number, since it is larger than the sum of its proper divisors (601867264).

742729556 is a wasteful number, since it uses less digits than its factorization.

742729556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6402874 (or 6402872 counting only the distinct ones).

The product of its digits is 1058400, while the sum is 47.

The square root of 742729556 is about 27253.0650753268. The cubic root of 742729556 is about 905.6149198353.

The spelling of 742729556 in words is "seven hundred forty-two million, seven hundred twenty-nine thousand, five hundred fifty-six".