440279 has 4 divisors (see below), whose sum is σ = 503184. Its totient is φ = 377376.

The previous prime is 440269. The next prime is 440281. The reversal of 440279 is 972044.

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

It is a cyclic number.

It is not a de Polignac number, because 440279 - 2⁸ = 440023 is a prime.

It is a Duffinian 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 440279.

It is not an unprimeable number, because it can be changed into a prime (440239) 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, 31442 + ... + 31455.

It is an arithmetic number, because the mean of its divisors is an integer number (125796).

2⁴⁴⁰²⁷⁹ is an apocalyptic number.

440279 is a deficient number, since it is larger than the sum of its proper divisors (62905).

440279 is an equidigital number, since it uses as much as digits as its factorization.

440279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62904.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 440279 is about 663.5352289065. The cubic root of 440279 is about 76.0751219357.

It can be divided in two parts, 440 and 279, that multiplied together give a triangular number (122760 = T₄₉₅).

The spelling of 440279 in words is "four hundred forty thousand, two hundred seventy-nine".