728050945 has 16 divisors (see below), whose sum is σ = 904893120. Its totient is φ = 561668800.

The previous prime is 728050937. The next prime is 728050957. The reversal of 728050945 is 549050827.

It is not a de Polignac number, because 728050945 - 2³ = 728050937 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 728050898 and 728050907.

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 15 ways as a sum of consecutive naturals, for example, 138210 + ... + 143380.

It is an arithmetic number, because the mean of its divisors is an integer number (56555820).

Almost surely, 2^728050945 is an apocalyptic number.

It is an amenable number.

728050945 is a deficient number, since it is larger than the sum of its proper divisors (176842175).

728050945 is a wasteful number, since it uses less digits than its factorization.

728050945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6176.

The product of its (nonzero) digits is 100800, while the sum is 40.

The square root of 728050945 is about 26982.4191836092. The cubic root of 728050945 is about 899.6092727805.

The spelling of 728050945 in words is "seven hundred twenty-eight million, fifty thousand, nine hundred forty-five".