742544742 has 32 divisors (see below), whose sum is σ = 1551115008. Its totient is φ = 236530976.

The previous prime is 742544741. The next prime is 742544753. The reversal of 742544742 is 247445247.

It is a self number, because there is not a number n which added to its sum of digits gives 742544742.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742544741) 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 15 ways as a sum of consecutive naturals, for example, 208408 + ... + 211940.

It is an arithmetic number, because the mean of its divisors is an integer number (48472344).

Almost surely, 2^742544742 is an apocalyptic number.

742544742 is an abundant number, since it is smaller than the sum of its proper divisors (808570266).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

742544742 is a wasteful number, since it uses less digits than its factorization.

742544742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5084.

The product of its digits is 250880, while the sum is 39.

The square root of 742544742 is about 27249.6741631895. The cubic root of 742544742 is about 905.5397986382.

Adding to 742544742 its reverse (247445247), we get a palindrome (989989989).

The spelling of 742544742 in words is "seven hundred forty-two million, five hundred forty-four thousand, seven hundred forty-two".