425918 has 8 divisors (see below), whose sum is σ = 676512. Its totient is φ = 200416.

The previous prime is 425911. The next prime is 425939. The reversal of 425918 is 819524.

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

It is a super-2 number, since 2×425918² = 362812285448, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 425918.

It is not an unprimeable number, because it can be changed into a prime (425911) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6230 + ... + 6297.

It is an arithmetic number, because the mean of its divisors is an integer number (84564).

2⁴²⁵⁹¹⁸ is an apocalyptic number.

425918 is a deficient number, since it is larger than the sum of its proper divisors (250594).

425918 is a wasteful number, since it uses less digits than its factorization.

425918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12546.

The product of its digits is 2880, while the sum is 29.

The square root of 425918 is about 652.6239345902. The cubic root of 425918 is about 75.2388238867.

The spelling of 425918 in words is "four hundred twenty-five thousand, nine hundred eighteen".