445278 has 16 divisors (see below), whose sum is σ = 910080. Its totient is φ = 145176.

The previous prime is 445271. The next prime is 445279. The reversal of 445278 is 872544.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445271) by changing a digit.

445278 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, 508 + ... + 1071.

It is an arithmetic number, because the mean of its divisors is an integer number (56880).

2⁴⁴⁵²⁷⁸ is an apocalyptic number.

445278 is an abundant number, since it is smaller than the sum of its proper divisors (464802).

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

445278 is a wasteful number, since it uses less digits than its factorization.

445278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1631.

The product of its digits is 8960, while the sum is 30.

The square root of 445278 is about 667.2915404829. The cubic root of 445278 is about 76.3619621876.

It can be divided in two parts, 44 and 5278, that multiplied together give a palindrome (232232).

The spelling of 445278 in words is "four hundred forty-five thousand, two hundred seventy-eight".