424418 has 4 divisors (see below), whose sum is σ = 636630. Its totient is φ = 212208.

The previous prime is 424397. The next prime is 424423. The reversal of 424418 is 814424.

424418 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 277729 + 146689 = 527^2 + 383^2 .

It is a junction number, because it is equal to n+sod(n) for n = 424393 and 424402.

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 as a sum of consecutive naturals, namely, 106103 + ... + 106106.

2⁴²⁴⁴¹⁸ is an apocalyptic number.

424418 is a deficient number, since it is larger than the sum of its proper divisors (212212).

424418 is a wasteful number, since it uses less digits than its factorization.

424418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212211.

The product of its digits is 1024, while the sum is 23.

The square root of 424418 is about 651.4737139747. The cubic root of 424418 is about 75.1503945146.

The spelling of 424418 in words is "four hundred twenty-four thousand, four hundred eighteen".