44845 has 4 divisors (see below), whose sum is σ = 53820. Its totient is φ = 35872.

The previous prime is 44843. The next prime is 44851. The reversal of 44845 is 54844.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19881 + 24964 = 141^2 + 158^2 .

It is a cyclic number.

It is not a de Polignac number, because 44845 - 2¹ = 44843 is a prime.

It is a super-2 number, since 2×44845² = 4022148050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4480 + ... + 4489.

It is an arithmetic number, because the mean of its divisors is an integer number (13455).

2⁴⁴⁸⁴⁵ is an apocalyptic number.

It is an amenable number.

44845 is a deficient number, since it is larger than the sum of its proper divisors (8975).

44845 is an equidigital number, since it uses as much as digits as its factorization.

44845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8974.

The product of its digits is 2560, while the sum is 25.

The square root of 44845 is about 211.7663807123. The cubic root of 44845 is about 35.5280476618.

Subtracting 44845 from its reverse (54844), we obtain a palindrome (9999).

It can be divided in two parts, 4484 and 5, that added together give a square (4489 = 67²).

The spelling of 44845 in words is "forty-four thousand, eight hundred forty-five".