445386 has 8 divisors (see below), whose sum is σ = 890784. Its totient is φ = 148460.

The previous prime is 445363. The next prime is 445427. The reversal of 445386 is 683544.

It is a sphenic number, since it is the product of 3 distinct primes.

445386 is an admirable number.

It is a congruent number.

It is an unprimeable number.

445386 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37110 + ... + 37121.

It is an arithmetic number, because the mean of its divisors is an integer number (111348).

2⁴⁴⁵³⁸⁶ is an apocalyptic number.

445386 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

445386 is a wasteful number, since it uses less digits than its factorization.

445386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74236.

The product of its digits is 11520, while the sum is 30.

The square root of 445386 is about 667.3724597255. The cubic root of 445386 is about 76.3681354286.

It can be divided in two parts, 44538 and 6, that added together give a palindrome (44544).

The spelling of 445386 in words is "four hundred forty-five thousand, three hundred eighty-six".