455445 has 24 divisors (see below), whose sum is σ = 819000. Its totient is φ = 233856.

The previous prime is 455443. The next prime is 455461. The reversal of 455445 is 544554.

It can be written as a sum of positive squares in 4 ways, for example, as 88209 + 367236 = 297^2 + 606^2 .

It is not a de Polignac number, because 455445 - 2¹ = 455443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (455443) 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 23 ways as a sum of consecutive naturals, for example, 1131 + ... + 1479.

It is an arithmetic number, because the mean of its divisors is an integer number (34125).

2⁴⁵⁵⁴⁴⁵ is an apocalyptic number.

455445 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

455445 is a deficient number, since it is larger than the sum of its proper divisors (363555).

455445 is a wasteful number, since it uses less digits than its factorization.

455445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389 (or 386 counting only the distinct ones).

The product of its digits is 8000, while the sum is 27.

The square root of 455445 is about 674.8666534953. The cubic root of 455445 is about 76.9387830750.

Adding to 455445 its reverse (544554), we get a palindrome (999999).

It can be divided in two parts, 455 and 445, that added together give a square (900 = 30²).

The spelling of 455445 in words is "four hundred fifty-five thousand, four hundred forty-five".