289741728 has 48 divisors (see below), whose sum is σ = 761636736. Its totient is φ = 96445440.

The previous prime is 289741721. The next prime is 289741733. The reversal of 289741728 is 827147982.

289741728 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (289741721) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 85800 + ... + 89112.

It is an arithmetic number, because the mean of its divisors is an integer number (15867432).

Almost surely, 2^289741728 is an apocalyptic number.

It is an amenable number.

289741728 is an abundant number, since it is smaller than the sum of its proper divisors (471895008).

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

289741728 is a wasteful number, since it uses less digits than its factorization.

289741728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4237 (or 4229 counting only the distinct ones).

The product of its digits is 451584, while the sum is 48.

The square root of 289741728 is about 17021.8015497773. The cubic root of 289741728 is about 661.7140387703.

The spelling of 289741728 in words is "two hundred eighty-nine million, seven hundred forty-one thousand, seven hundred twenty-eight".