445655 has 24 divisors (see below), whose sum is σ = 664848. Its totient is φ = 284928.

The previous prime is 445649. The next prime is 445657. The reversal of 445655 is 556544.

It is not a de Polignac number, because 445655 - 2¹⁴ = 429271 is a prime.

It is a Duffinian number.

It is a congruent number.

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

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4112 + ... + 4218.

It is an arithmetic number, because the mean of its divisors is an integer number (27702).

2⁴⁴⁵⁶⁵⁵ is an apocalyptic number.

445655 is a deficient number, since it is larger than the sum of its proper divisors (219193).

445655 is a wasteful number, since it uses less digits than its factorization.

445655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143 (or 136 counting only the distinct ones).

The product of its digits is 12000, while the sum is 29.

The square root of 445655 is about 667.5739659394. The cubic root of 445655 is about 76.3835070344.

Subtracting 445655 from its reverse (556544), we obtain a square (110889 = 333²).

The spelling of 445655 in words is "four hundred forty-five thousand, six hundred fifty-five".