742742742 has 32 divisors (see below), whose sum is σ = 1729734912. Its totient is φ = 208207584.

The previous prime is 742742717. The next prime is 742742761. The reversal of 742742742 is 247247247.

742742742 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

742742742 is a modest number, since divided by 742742 gives 742 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 742742742.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 164608 + ... + 169059.

It is an arithmetic number, because the mean of its divisors is an integer number (54054216).

Almost surely, 2^742742742 is an apocalyptic number.

742742742 is an abundant number, since it is smaller than the sum of its proper divisors (986992170).

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

742742742 is a wasteful number, since it uses less digits than its factorization.

742742742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333732.

The product of its digits is 175616, while the sum is 39.

The square root of 742742742 is about 27253.3069919964. The cubic root of 742742742 is about 905.6202790617.

Adding to 742742742 its reverse (247247247), we get a palindrome (989989989).

The spelling of 742742742 in words is "seven hundred forty-two million, seven hundred forty-two thousand, seven hundred forty-two".