200445 has 32 divisors (see below), whose sum is σ = 387072. Its totient is φ = 86592.

The previous prime is 200443. The next prime is 200461. The reversal of 200445 is 544002.

200445 = 58² + 59² + ... + 92².

200445 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 200445 - 2¹ = 200443 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

200445 is strictly pandigital in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200443) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2374 + ... + 2456.

It is an arithmetic number, because the mean of its divisors is an integer number (12096).

2²⁰⁰⁴⁴⁵ is an apocalyptic number.

It is an amenable number.

200445 is a deficient number, since it is larger than the sum of its proper divisors (186627).

200445 is a wasteful number, since it uses less digits than its factorization.

200445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121.

The product of its (nonzero) digits is 160, while the sum is 15.

The square root of 200445 is about 447.7108441841. The cubic root of 200445 is about 58.5236955655.

Adding to 200445 its reverse (544002), we get a palindrome (744447).

The spelling of 200445 in words is "two hundred thousand, four hundred forty-five".