445263 has 24 divisors (see below), whose sum is σ = 746928. Its totient is φ = 233856.

The previous prime is 445261. The next prime is 445271. The reversal of 445263 is 362544.

It is not a de Polignac number, because 445263 - 2¹ = 445261 is a prime.

445263 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445261) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1795 + ... + 2027.

It is an arithmetic number, because the mean of its divisors is an integer number (31122).

2⁴⁴⁵²⁶³ is an apocalyptic number.

445263 is a deficient number, since it is larger than the sum of its proper divisors (301665).

445263 is a wasteful number, since it uses less digits than its factorization.

445263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263 (or 256 counting only the distinct ones).

The product of its digits is 2880, while the sum is 24.

The square root of 445263 is about 667.2803009231. The cubic root of 445263 is about 76.3611047141.

The spelling of 445263 in words is "four hundred forty-five thousand, two hundred sixty-three".