425218 has 8 divisors (see below), whose sum is σ = 644112. Its totient is φ = 210516.

The previous prime is 425207. The next prime is 425233. The reversal of 425218 is 812524.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 780 + ... + 1207.

It is an arithmetic number, because the mean of its divisors is an integer number (80514).

2⁴²⁵²¹⁸ is an apocalyptic number.

425218 is a deficient number, since it is larger than the sum of its proper divisors (218894).

425218 is a wasteful number, since it uses less digits than its factorization.

425218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2096.

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

The square root of 425218 is about 652.0874174526. The cubic root of 425218 is about 75.1975827275.

The spelling of 425218 in words is "four hundred twenty-five thousand, two hundred eighteen".