445501 has 8 divisors (see below), whose sum is σ = 525824. Its totient is φ = 369360.

The previous prime is 445499. The next prime is 445507. The reversal of 445501 is 105544.

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

It is a cyclic number.

It is not a de Polignac number, because 445501 - 2¹ = 445499 is a prime.

It is a super-2 number, since 2×445501² = 396942282002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445507) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 810 + ... + 1243.

It is an arithmetic number, because the mean of its divisors is an integer number (65728).

2⁴⁴⁵⁵⁰¹ is an apocalyptic number.

It is an amenable number.

445501 is a deficient number, since it is larger than the sum of its proper divisors (80323).

445501 is a wasteful number, since it uses less digits than its factorization.

445501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2091.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 445501 is about 667.4586129491. The cubic root of 445501 is about 76.3747076901.

It can be divided in two parts, 44550 and 1, that added together give a triangular number (44551 = T₂₉₈).

The spelling of 445501 in words is "four hundred forty-five thousand, five hundred one".