445465 has 12 divisors (see below), whose sum is σ = 558252. Its totient is φ = 341120.

The previous prime is 445463. The next prime is 445477. The reversal of 445465 is 564544.

It can be written as a sum of positive squares in 6 ways, for example, as 110224 + 335241 = 332^2 + 579^2 .

It is not a de Polignac number, because 445465 - 2¹ = 445463 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445463) 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, 8379 + ... + 8431.

It is an arithmetic number, because the mean of its divisors is an integer number (46521).

2⁴⁴⁵⁴⁶⁵ is an apocalyptic number.

It is an amenable number.

445465 is a deficient number, since it is larger than the sum of its proper divisors (112787).

445465 is an equidigital number, since it uses as much as digits as its factorization.

445465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140 (or 99 counting only the distinct ones).

The product of its digits is 9600, while the sum is 28.

The square root of 445465 is about 667.4316444401. The cubic root of 445465 is about 76.3726504081.

It can be divided in two parts, 44546 and 5, that added together give a triangular number (44551 = T₂₉₈).

The spelling of 445465 in words is "four hundred forty-five thousand, four hundred sixty-five".