742682728 has 16 divisors (see below), whose sum is σ = 1411606980. Its totient is φ = 366254208.

The previous prime is 742682687. The next prime is 742682749. The reversal of 742682728 is 827286247.

It can be written as a sum of positive squares in 2 ways, for example, as 739731204 + 2951524 = 27198^2 + 1718^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 635275 + ... + 636442.

Almost surely, 2^742682728 is an apocalyptic number.

It is an amenable number.

742682728 is a deficient number, since it is larger than the sum of its proper divisors (668924252).

742682728 is a wasteful number, since it uses less digits than its factorization.

742682728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1271796 (or 1271792 counting only the distinct ones).

The product of its digits is 602112, while the sum is 46.

The square root of 742682728 is about 27252.2059290620. The cubic root of 742682728 is about 905.5958868749.

The spelling of 742682728 in words is "seven hundred forty-two million, six hundred eighty-two thousand, seven hundred twenty-eight".