418045 has 4 divisors (see below), whose sum is σ = 501660. Its totient is φ = 334432.

The previous prime is 418043. The next prime is 418051. The reversal of 418045 is 540814.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 540814 = 2 ⋅270407.

It can be written as a sum of positive squares in 2 ways, for example, as 133956 + 284089 = 366^2 + 533^2 .

It is a cyclic number.

It is not a de Polignac number, because 418045 - 2¹ = 418043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (418043) 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 3 ways as a sum of consecutive naturals, for example, 41800 + ... + 41809.

It is an arithmetic number, because the mean of its divisors is an integer number (125415).

2⁴¹⁸⁰⁴⁵ is an apocalyptic number.

It is an amenable number.

418045 is a deficient number, since it is larger than the sum of its proper divisors (83615).

418045 is an equidigital number, since it uses as much as digits as its factorization.

418045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83614.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 418045 is about 646.5639952858. The cubic root of 418045 is about 74.7723467227.

Adding to 418045 its reverse (540814), we get a palindrome (958859).

It can be divided in two parts, 4180 and 45, that added together give a square (4225 = 65²).

The spelling of 418045 in words is "four hundred eighteen thousand, forty-five".