440679 has 4 divisors (see below), whose sum is σ = 587576. Its totient is φ = 293784.

The previous prime is 440677. The next prime is 440681. The reversal of 440679 is 976044.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (440677) and next prime (440681).

It is not a de Polignac number, because 440679 - 2¹ = 440677 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440677) 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, 73444 + ... + 73449.

It is an arithmetic number, because the mean of its divisors is an integer number (146894).

2⁴⁴⁰⁶⁷⁹ is an apocalyptic number.

440679 is a deficient number, since it is larger than the sum of its proper divisors (146897).

440679 is a wasteful number, since it uses less digits than its factorization.

440679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146896.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 440679 is about 663.8365762746. The cubic root of 440679 is about 76.0981534211.

The spelling of 440679 in words is "four hundred forty thousand, six hundred seventy-nine".