728457294 has 8 divisors (see below), whose sum is σ = 1456914600. Its totient is φ = 242819096.

The previous prime is 728457287. The next prime is 728457337. The reversal of 728457294 is 492754827.

728457294 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

728457294 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60704769 + ... + 60704780.

It is an arithmetic number, because the mean of its divisors is an integer number (182114325).

Almost surely, 2^728457294 is an apocalyptic number.

728457294 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

728457294 is a wasteful number, since it uses less digits than its factorization.

728457294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121409554.

The product of its digits is 1128960, while the sum is 48.

The square root of 728457294 is about 26989.9480177343. The cubic root of 728457294 is about 899.7766087536.

The spelling of 728457294 in words is "seven hundred twenty-eight million, four hundred fifty-seven thousand, two hundred ninety-four".