445656 has 32 divisors (see below), whose sum is σ = 1152000. Its totient is φ = 143520.

The previous prime is 445649. The next prime is 445657. The reversal of 445656 is 656544.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 445656.

It is not an unprimeable number, because it can be changed into a prime (445657) by changing a digit.

445656 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 7 ways as a sum of consecutive naturals, for example, 445 + ... + 1043.

It is an arithmetic number, because the mean of its divisors is an integer number (36000).

2⁴⁴⁵⁶⁵⁶ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 445656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (576000).

445656 is an abundant number, since it is smaller than the sum of its proper divisors (706344).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

445656 is a wasteful number, since it uses less digits than its factorization.

445656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639 (or 635 counting only the distinct ones).

The product of its digits is 14400, while the sum is 30.

The square root of 445656 is about 667.5747149196. The cubic root of 445656 is about 76.3835641663.

The spelling of 445656 in words is "four hundred forty-five thousand, six hundred fifty-six".