440478079 has 4 divisors (see below), whose sum is σ = 441442384. Its totient is φ = 439513776.

The previous prime is 440478053. The next prime is 440478089. The reversal of 440478079 is 970874044.

It is a happy number.

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 440478079 - 2⁷ = 440477951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440478029) 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, 481467 + ... + 482380.

It is an arithmetic number, because the mean of its divisors is an integer number (110360596).

Almost surely, 2^440478079 is an apocalyptic number.

440478079 is a deficient number, since it is larger than the sum of its proper divisors (964305).

440478079 is an equidigital number, since it uses as much as digits as its factorization.

440478079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 964304.

The product of its (nonzero) digits is 225792, while the sum is 43.

The square root of 440478079 is about 20987.5696306171. The cubic root of 440478079 is about 760.8658639130.

The spelling of 440478079 in words is "four hundred forty million, four hundred seventy-eight thousand, seventy-nine".