445293 has 6 divisors (see below), whose sum is σ = 643214. Its totient is φ = 296856.

The previous prime is 445283. The next prime is 445297. The reversal of 445293 is 392544.

It can be written as a sum of positive squares in only one way, i.e., 328329 + 116964 = 573^2 + 342^2 .

It is not a de Polignac number, because 445293 - 2⁵ = 445261 is a prime.

It is a Duffinian number.

445293 is a lucky number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 445293.

It is not an unprimeable number, because it can be changed into a prime (445297) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24730 + ... + 24747.

2⁴⁴⁵²⁹³ is an apocalyptic number.

It is an amenable number.

445293 is a deficient number, since it is larger than the sum of its proper divisors (197921).

445293 is a wasteful number, since it uses less digits than its factorization.

445293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49483 (or 49480 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 445293 is about 667.3027798533. The cubic root of 445293 is about 76.3628196419.

The spelling of 445293 in words is "four hundred forty-five thousand, two hundred ninety-three".