80445328 has 10 divisors (see below), whose sum is σ = 155862854. Its totient is φ = 40222656.

The previous prime is 80445317. The next prime is 80445349. The reversal of 80445328 is 82354408.

It can be written as a sum of positive squares in only one way, i.e., 75481344 + 4963984 = 8688^2 + 2228^2 .

It is a junction number, because it is equal to n+sod(n) for n = 80445293 and 80445302.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2513901 + ... + 2513932.

Almost surely, 2^80445328 is an apocalyptic number.

It is an amenable number.

80445328 is a deficient number, since it is larger than the sum of its proper divisors (75417526).

80445328 is a wasteful number, since it uses less digits than its factorization.

80445328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5027841 (or 5027835 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 34.

The square root of 80445328 is about 8969.1319535393. The cubic root of 80445328 is about 431.6849841083.

The spelling of 80445328 in words is "eighty million, four hundred forty-five thousand, three hundred twenty-eight".