445869 has 12 divisors (see below), whose sum is σ = 651456. Its totient is φ = 293832.

The previous prime is 445853. The next prime is 445871. The reversal of 445869 is 968544.

It is not a de Polignac number, because 445869 - 2⁴ = 445853 is a prime.

It is a super-2 number, since 2×445869² = 397598330322, which contains 22 as substring.

Its product of digits (34560) is a multiple of the sum of its prime factors (576).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445829) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 732 + ... + 1194.

It is an arithmetic number, because the mean of its divisors is an integer number (54288).

2⁴⁴⁵⁸⁶⁹ is an apocalyptic number.

It is an amenable number.

445869 is a deficient number, since it is larger than the sum of its proper divisors (205587).

445869 is a wasteful number, since it uses less digits than its factorization.

445869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576 (or 573 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 445869 is about 667.7342285670. The cubic root of 445869 is about 76.3957313295.

The spelling of 445869 in words is "four hundred forty-five thousand, eight hundred sixty-nine".