446728 has 16 divisors (see below), whose sum is σ = 882000. Its totient is φ = 211536.

The previous prime is 446717. The next prime is 446731. The reversal of 446728 is 827644.

It is a self number, because there is not a number n which added to its sum of digits gives 446728.

It is an unprimeable number.

446728 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1318 + ... + 1621.

It is an arithmetic number, because the mean of its divisors is an integer number (55125).

2⁴⁴⁶⁷²⁸ is an apocalyptic number.

It is an amenable number.

446728 is a deficient number, since it is larger than the sum of its proper divisors (435272).

446728 is a wasteful number, since it uses less digits than its factorization.

446728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2964 (or 2960 counting only the distinct ones).

The product of its digits is 10752, while the sum is 31.

The square root of 446728 is about 668.3771390465. The cubic root of 446728 is about 76.4447605549. Note that the first 3 decimals are identical.

The spelling of 446728 in words is "four hundred forty-six thousand, seven hundred twenty-eight".