425618 has 8 divisors (see below), whose sum is σ = 643440. Its totient is φ = 211140.

The previous prime is 425609. The next prime is 425641. The reversal of 425618 is 816524.

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

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 425618.

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, 488 + ... + 1043.

It is an arithmetic number, because the mean of its divisors is an integer number (80430).

2⁴²⁵⁶¹⁸ is an apocalyptic number.

425618 is a deficient number, since it is larger than the sum of its proper divisors (217822).

425618 is a wasteful number, since it uses less digits than its factorization.

425618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1672.

The product of its digits is 1920, while the sum is 26.

The square root of 425618 is about 652.3940527013. The cubic root of 425618 is about 75.2211546414.

The spelling of 425618 in words is "four hundred twenty-five thousand, six hundred eighteen".