728072441 has 8 divisors (see below), whose sum is σ = 746340480. Its totient is φ = 709920208.

The previous prime is 728072369. The next prime is 728072461. The reversal of 728072441 is 144270827.

It is a happy number.

728072441 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.

It is a cyclic number.

It is not a de Polignac number, because 728072441 - 2¹⁸ = 727810297 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (728072461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16151 + ... + 41436.

It is an arithmetic number, because the mean of its divisors is an integer number (93292560).

Almost surely, 2^728072441 is an apocalyptic number.

It is an amenable number.

728072441 is a deficient number, since it is larger than the sum of its proper divisors (18268039).

728072441 is a wasteful number, since it uses less digits than its factorization.

728072441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57903.

The product of its (nonzero) digits is 25088, while the sum is 35.

The square root of 728072441 is about 26982.8175141144. The cubic root of 728072441 is about 899.6181264698.

The spelling of 728072441 in words is "seven hundred twenty-eight million, seventy-two thousand, four hundred forty-one".