728678352 has 20 divisors (see below), whose sum is σ = 1882419200. Its totient is φ = 242892768.

The previous prime is 728678347. The next prime is 728678369. The reversal of 728678352 is 253876827.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 15180799 = 728678352 / (7 + 2 + 8 + 6 + 7 + 8 + 3 + 5 + 2).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7590352 + ... + 7590447.

It is an arithmetic number, because the mean of its divisors is an integer number (94120960).

Almost surely, 2^728678352 is an apocalyptic number.

It is an amenable number.

728678352 is an abundant number, since it is smaller than the sum of its proper divisors (1153740848).

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

728678352 is a wasteful number, since it uses less digits than its factorization.

728678352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15180810 (or 15180804 counting only the distinct ones).

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

The square root of 728678352 is about 26994.0428983878. The cubic root of 728678352 is about 899.8676150958.

The spelling of 728678352 in words is "seven hundred twenty-eight million, six hundred seventy-eight thousand, three hundred fifty-two".