728283822 has 48 divisors (see below), whose sum is σ = 1740224640. Its totient is φ = 199028016.

The previous prime is 728283821. The next prime is 728283823. The reversal of 728283822 is 228382827.

It is an interprime number because it is at equal distance from previous prime (728283821) and next prime (728283823).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (728283821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5829 + ... + 38607.

It is an arithmetic number, because the mean of its divisors is an integer number (36254680).

Almost surely, 2^728283822 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 728283822, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (870112320).

728283822 is an abundant number, since it is smaller than the sum of its proper divisors (1011940818).

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

728283822 is a wasteful number, since it uses less digits than its factorization.

728283822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32837 (or 32814 counting only the distinct ones).

The product of its digits is 172032, while the sum is 42.

The square root of 728283822 is about 26986.7341855216. The cubic root of 728283822 is about 899.7051799773.

The spelling of 728283822 in words is "seven hundred twenty-eight million, two hundred eighty-three thousand, eight hundred twenty-two".