424045 has 4 divisors (see below), whose sum is σ = 508860. Its totient is φ = 339232.

The previous prime is 424037. The next prime is 424079. The reversal of 424045 is 540424.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 88804 + 335241 = 298^2 + 579^2 .

It is a cyclic number.

It is not a de Polignac number, because 424045 - 2³ = 424037 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 42400 + ... + 42409.

It is an arithmetic number, because the mean of its divisors is an integer number (127215).

2⁴²⁴⁰⁴⁵ is an apocalyptic number.

It is an amenable number.

424045 is a deficient number, since it is larger than the sum of its proper divisors (84815).

424045 is an equidigital number, since it uses as much as digits as its factorization.

424045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84814.

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 424045 is about 651.1873770275. The cubic root of 424045 is about 75.1283727398.

Adding to 424045 its reverse (540424), we get a palindrome (964469).

The spelling of 424045 in words is "four hundred twenty-four thousand, forty-five".