728340184445 has 8 divisors (see below), whose sum is σ = 878584181760. Its totient is φ = 579621507280.

The previous prime is 728340184433. The next prime is 728340184477. The reversal of 728340184445 is 544481043827.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 728340184445 - 2⁸ = 728340184189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 728340184393 and 728340184402.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 381328985 + ... + 381330894.

It is an arithmetic number, because the mean of its divisors is an integer number (109823022720).

Almost surely, 2^728340184445 is an apocalyptic number.

It is an amenable number.

728340184445 is a deficient number, since it is larger than the sum of its proper divisors (150243997315).

728340184445 is a wasteful number, since it uses less digits than its factorization.

728340184445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 762660075.

The product of its (nonzero) digits is 3440640, while the sum is 50.

The spelling of 728340184445 in words is "seven hundred twenty-eight billion, three hundred forty million, one hundred eighty-four thousand, four hundred forty-five".