445616 has 10 divisors (see below), whose sum is σ = 863412. Its totient is φ = 222800.

The previous prime is 445597. The next prime is 445619. The reversal of 445616 is 616544.

It is a happy number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 445616.

It is not an unprimeable number, because it can be changed into a prime (445619) by changing a digit.

445616 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 as a sum of consecutive naturals, namely, 13910 + ... + 13941.

2⁴⁴⁵⁶¹⁶ is an apocalyptic number.

It is an amenable number.

445616 is a deficient number, since it is larger than the sum of its proper divisors (417796).

445616 is a wasteful number, since it uses less digits than its factorization.

445616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27859 (or 27853 counting only the distinct ones).

The product of its digits is 2880, while the sum is 26.

The square root of 445616 is about 667.5447550539. The cubic root of 445616 is about 76.3812788207.

The spelling of 445616 in words is "four hundred forty-five thousand, six hundred sixteen".