743261728 has 24 divisors (see below), whose sum is σ = 1596324240. Its totient is φ = 337846080.

The previous prime is 743261711. The next prime is 743261737. The reversal of 743261728 is 827162347.

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, 1055418 + ... + 1056121.

It is an arithmetic number, because the mean of its divisors is an integer number (66513510).

Almost surely, 2^743261728 is an apocalyptic number.

It is an amenable number.

743261728 is an abundant number, since it is smaller than the sum of its proper divisors (853062512).

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

743261728 is a wasteful number, since it uses less digits than its factorization.

743261728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2111560 (or 2111552 counting only the distinct ones).

The product of its digits is 112896, while the sum is 40.

The square root of 743261728 is about 27262.8268526945. The cubic root of 743261728 is about 905.8311617768.

The spelling of 743261728 in words is "seven hundred forty-three million, two hundred sixty-one thousand, seven hundred twenty-eight".