440618 has 8 divisors (see below), whose sum is σ = 665760. Its totient is φ = 218700.

The previous prime is 440581. The next prime is 440641. The reversal of 440618 is 816044.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 440593 and 440602.

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, 428 + ... + 1031.

It is an arithmetic number, because the mean of its divisors is an integer number (83220).

2⁴⁴⁰⁶¹⁸ is an apocalyptic number.

440618 is a deficient number, since it is larger than the sum of its proper divisors (225142).

440618 is a wasteful number, since it uses less digits than its factorization.

440618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1612.

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 440618 is about 663.7906296416. The cubic root of 440618 is about 76.0946420205.

The spelling of 440618 in words is "four hundred forty thousand, six hundred eighteen".