728283456 has 84 divisors (see below), whose sum is σ = 2091935872. Its totient is φ = 242244864.

The previous prime is 728283449. The next prime is 728283461. The reversal of 728283456 is 654382827.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 348591 + ... + 350673.

Almost surely, 2^728283456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 728283456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1045967936).

728283456 is an abundant number, since it is smaller than the sum of its proper divisors (1363652416).

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

728283456 is a wasteful number, since it uses less digits than its factorization.

728283456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2708 (or 2695 counting only the distinct ones).

The product of its digits is 645120, while the sum is 45.

The square root of 728283456 is about 26986.7274044112. The cubic root of 728283456 is about 899.7050292612.

It can be divided in two parts, 7282834 and 56, that multiplied together give a palindrome (407838704).

The spelling of 728283456 in words is "seven hundred twenty-eight million, two hundred eighty-three thousand, four hundred fifty-six".