445522 has 24 divisors (see below), whose sum is σ = 842688. Its totient is φ = 172920.

The previous prime is 445507. The next prime is 445537. The reversal of 445522 is 225544.

It is an interprime number because it is at equal distance from previous prime (445507) and next prime (445537).

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a d-powerful number, because it can be written as 4⁵ + 4⁶ + 5⁴ + 5⁸ + 2¹⁴ + 2¹⁵ .

It is a nialpdrome in base 14.

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 445493 and 445502.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1563 + ... + 1825.

It is an arithmetic number, because the mean of its divisors is an integer number (35112).

2⁴⁴⁵⁵²² is an apocalyptic number.

445522 is a deficient number, since it is larger than the sum of its proper divisors (397166).

445522 is a wasteful number, since it uses less digits than its factorization.

445522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294 (or 283 counting only the distinct ones).

The product of its digits is 1600, while the sum is 22.

The square root of 445522 is about 667.4743440762. The cubic root of 445522 is about 76.3759077201.

Adding to 445522 its sum of digits (22), we get a palindrome (445544).

The spelling of 445522 in words is "four hundred forty-five thousand, five hundred twenty-two".