445730 has 24 divisors (see below), whose sum is σ = 846612. Its totient is φ = 168896.

The previous prime is 445703. The next prime is 445741. The reversal of 445730 is 37544.

It can be written as a sum of positive squares in 6 ways, for example, as 253009 + 192721 = 503^2 + 439^2 .

It is a junction number, because it is equal to n+sod(n) for n = 445696 and 445705.

It is an unprimeable number.

445730 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8384 + ... + 8436.

2⁴⁴⁵⁷³⁰ is an apocalyptic number.

445730 is a deficient number, since it is larger than the sum of its proper divisors (400882).

445730 is a wasteful number, since it uses less digits than its factorization.

445730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118 (or 89 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 445730 is about 667.6301371268. The cubic root of 445730 is about 76.3877916953.

The spelling of 445730 in words is "four hundred forty-five thousand, seven hundred thirty".