440313 has 8 divisors (see below), whose sum is σ = 590208. Its totient is φ = 291984.

The previous prime is 440311. The next prime is 440329. The reversal of 440313 is 313044.

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

It is not a de Polignac number, because 440313 - 2¹ = 440311 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 440292 and 440301.

It is not an unprimeable number, because it can be changed into a prime (440311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 720 + ... + 1182.

It is an arithmetic number, because the mean of its divisors is an integer number (73776).

2⁴⁴⁰³¹³ is an apocalyptic number.

It is an amenable number.

440313 is a deficient number, since it is larger than the sum of its proper divisors (149895).

440313 is a wasteful number, since it uses less digits than its factorization.

440313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 783.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 440313 is about 663.5608487547. The cubic root of 440313 is about 76.0770801543.

Adding to 440313 its reverse (313044), we get a palindrome (753357).

The spelling of 440313 in words is "four hundred forty thousand, three hundred thirteen".